Block-based precoding for serially concatenated codes (2009)
Precoders have been shown to facilitate iterative decoding convergence towards the Maximum Likelihood (ML) performance in serially concatenated schemes. In this letter, we propose a novel block-based...
Extrinsic Information Transfer Analysis of Block-Based Precoders (2009)
Precoders have been shown to facilitate iterative decoding convergence to the maximum likelihood error ratio performance in serially concatenated schemes. In this paper, we propose a novel...
Evolutionary Algorithm Aided Interleaver Design for Serially Concatenated Codes (2009)
In this paper, we propose an algorithm for designing the interleavers of Serially Concatenated Codes (SCCs), in order to increase the Minimum Hamming Distance (MHD) between the legitimate...
Concatenated Irregular Variable Length Coding and Irregular Unity Rate Coding (2009)
In this contribution we propose the novel serial concatenation of Irregular Variable Length Coding (IrVLC) and Irregular Unity Rate Coding (IrURC), where we matched the corresponding EXtrinsic...
T. D. Nguyen, Fc. Kuo, L. L. Yang, L. Hanzo
Abstract – Luby Transform codes (LT) were originally designed for the Binary Erasure Channel (BEC) encountered owing to randomly dropped packets in the statistical multiplexing aided Internet,...
IRREGULAR VARIABLE LENGTH CODING FOR NEAR-CAPACITY JOINT SOURCE AND CHANNEL CODING (2008)
R. G. Maunder, J. Wang, S. X. Ng, L-l. Yang, L. Hanzo
In this paper we propose a novel Irregular Variable Length Coding (IrVLC) scheme for near-capacity joint source and channel coding. We employ a number of component Variable Length Coding (VLC)...
Generic MMSE Decision Directed Channel Estimation for OFDM and MC-CDMA (2008)
Abstract — In this letter we propose a Minimum Mean Square Error (MMSE) Channel Impulse Response (CIR) estimator-aided Decision Directed Channel Estimation (DDCE) method, which is suitable for...
Concatenated Irregular Variable Length Coding and Irregular Unity Rate Coding (2008)
In this contribution we propose the novel serial concatenation of Irregular Variable Length Coding (IrVLC) and Irregular Unity Rate Coding (IrURC), where we matched the corresponding EXtrinsic...
Genetic Algorithm Aided Design of Component Codes for Irregular Variable Length Coding (2008)
In this paper we propose a novel Real-Valued Free Distance Metric (RV-FDM) for comparing the error correction capabilities of Variable Length Error Correction (VLEC) codebooks that have the same...
Near-Capacity Irregular Variable Length Coding and Irregular Unity Rate Coding (2008)
In this contribution we introduce an EXtrinsic Information Transfer (EXIT) chart matching technique for the design of two serially concatenated irregular codecs, each constituted by a variety of...
EXIT chart aided design of DS-CDMA ultra wideband systems using iterative decoding (2008)
Riaz, R.A., El-Hajjar, M., Ahmed, Q.Z., Ng, S.X., Chen, S., Hanzo, L.
Block-based precoding for serially concatenated codes (2008)
A block-based precoder is designed for serially concatenated schemes, which facilitates iterative decoding convergence towards the Maximum Likelihood (ML) error ratio performance at reduced channel...
P. Cherriman, M. Münster, L. Hanzo
Abstract—Multiuser detection assisted, multiple transmit antenna based OFDM arrangements are studied in the context of HIPERLAN 2-like systems. It is demonstrated that the system’s user capacity...
A. Q. Pham, J. Wang, L. L. Yang, L. Hanzo
Abstract — In this paper, we characterize the achievable performance of a wavelet encoding-based videophone system, which further compresses and protects the wavelet-based video codec’s...
T. D. Nguyen, L. L. Yang, S. X. Ng, L. Hanzo
Abstract – Recently, the authors of this paper proposed Systematic Luby Transform (SLT) codes and their soft decoding using the classic loglikelihood message passing algorithm for transmission over...
Iterative Decoding for Redistributing Energy Consumption in Wireless Sensor Networks (2008)
Maunder, R. G., Weddell, A. S., Merrett, G. V., Al-Hashimi, B. M., Hanzo, L.
In this paper, we propose a method for desirably redistributing a wireless sensor network's energy consumption from its sensor nodes (which may have scarce energy resources obtained through energy...
Iterative decoding convergence and termination of serially concatenated codes (2008)
In this paper we demonstrate that previously proposed serially concatenated codes only facilitate iterative decoding convergence towards points that are near but not at the top-right hand corner of...
Adaptive minimum error-rate filtering design: a review (2008)
Chen, S., Tan, S., Xu, L., Hanzo, L.
Adaptive filtering has been an enabling technology and has found ever-increasing applications in various state-of-the-art communication systems. Traditionally, adaptive filtering has been developed...
Near-Optimum Soft-Output Ant-Colony-Optimization Based Multiuser Detection for the DS-CDMA (2008)
Xu, C., Maunder, R. G., Hanzo, L.
In this contribution, a novel soft-output Ant Colony Optimization (ACO) based Multi-User Detector (MUD) is proposed for the synchronous Direct-Sequence Code-Division- Multiple-Access (DS-CDMA)...
Near-Capacity Irregular Precoded Linear Dispersion Codes (2008)
In this treatise, we propose a novel serial concatenated RSC-coded Irregular Precoded Linear Dispersion Codes (IR-PLDC), which is capable of operating near MIMO channel’s capacity. The irregular...
Near-Capacity Irregular Bit-Interleaved Coded Modulation (2008)
Tee, R. Y., Maunder, R. G., Wang, J., Hanzo, L.
An Irregular Bit-Interleaved Coded Modulation based Iterative Decoding (Ir-BICM-ID) aided scheme is proposed. The irregularity of the scheme pervades the three basic components of BICM-ID, namely the...
Multilevel Structured Low-Density Parity-Check Codes (2008)
Bonello, N., Chen, S., Hanzo, L.
Low-Density Parity-Check (LDPC) codes are typically characterized by a relatively high-complexity description, since a considerable amount of memory is required in order to store their code...
Symmetric RBF Classifier for Nonlinear Detection in Multiple-Antenna Aided Systems (2008)
Chen, S., Wolfgang, A., Harris, C.J., Hanzo, L.
In this paper, we propose a powerful symmetric radial basis function (RBF) classifier for nonlinear detection in the so-called “overloaded” multiple-antenna-aided communication systems. By...
Semi-Blind Spatial Equalisation for MIMO Channels with Quadrature Amplitude Modulation (2008)
Semi-blind spatial equalisation is considered for multiple-input multiple-output (MIMO) systems that employ high-throughput quadrature amplitude modulation scheme. A minimum number of training...
Nonlinear Beamforming for Multiple-Antenna Assisted QPSK Wireless Systems (2008)
A nonlinear beamforming aided detector is proposed for multiple-antenna assisted quadrature phase shift keying systems. By exploiting the inherent symmetry of the optimal Bayesian detection solution,...
Three-Stage Turbo MBER Multiuser Beamforming Receiver using Irregular Convolutional Codes (2008)
Tan, S., Wang, J., Ng, S.X., Chen, S., Hanzo, L.
Based on extrinsic information transfer (EXIT) charts, the convergence behavior of a three-stage serially concatenated multiuser beamforming receiver is presented. This system uses a linear minimum...
Repeat Accumulate Code Division Multiple Access and its Hybrid Detection (2008)
Zhang, R., Xu, L., Chen, S., Hanzo, L.
Abstract—In this paper, we propose the novel concept of Repeat Accumulate Code Division Multiple Access (RA-CDMA), which employs unique, user-specific channel code generator matrices (interleavers)...
Iterative Detected Sphere Packing Modulated OFDM: An EXIT Chart Perspective (2008)
Xu, L., El-Hajjar, M., Alamri, O., Chen, S., Hanzo, L.
A novel iteratively detected Sphere Packing (SP) modulation aided Orthogonal Frequency Division Multiplexing (OFDM) scheme is proposed, which we refer to as the SPOFDM arrangement. The advocated...
Irregular Precoder-Aided Differential Linear Dispersion Codes (2008)
Abstract—In this treatise, we propose a novel family of serial concatenated IrRegular Convolutional Coded (IRCC) IrRegular Precoded Differential Linear Dispersion Codes (IR-PDLDC). The irregularity...
Wu, N., Nguyen Dang, T., Wei, C.Y., Yang, L-L, Hanzo, L.
In this treatise, a jointly optimized Bit Interleaved Coded Modulation using Iterative Decoding (BICM-ID) and Luby Transform (LT) coding scheme was proposed for the sake of attaining the best...
Othman, N.S., El-Hajjar, M., Pham, A.Q., Alamri, O., Ng, S.X., Hanzo, L.
In this paper we propose an iteratively detected Sphere Packing (SP) aided Differential Space-Time Spreading (DSTS) scheme using a Recursive Systematic Convolutional (RSC) code, for protecting the...
Serial Search Based Code Acquisition in the Cooperative MIMO Aided DS-CDMA Downlink (2008)
Won, Seung, Lee, K., Hanzo, L.
In this paper we investigate a realistic code acquisition assisted cooperative Non-Coherent (NC) Multiple-Input Multiple-Output (MIMO) DS-CDMA downlink scenario, when communicating over uncorrelated...
Abstract—In this contribution we investigate both Differentially Coherent (DC) and Non-Coherent (NC) code acquisition schemes in the Multiple Input Multiple Output (MIMO)-aided Direct Sequence-Code...
In this contribution we show how Shannon’s coding theory could be realized for Multiple-Input Multiple-Output (MIMO) channels with the aid of EXtrinsic Information Transfer (EXIT) charts and the...
Genetic Algorithm Aided Design of Near-Capacity Irregular Variable Length Codes (2008)
In this paper we demonstrate that our ability to match the EXtrinsic Information Transfer (EXIT) function of an Irregular Variable Length Code (IrVLC) to that of a serially-concatenated inner code...
Genetic Algorithm Aided Design of Near-Capacity Irregular Variable Length Codes (2008)
In this paper we demonstrate that our ability to match the EXtrinsic Information Transfer (EXIT) function of an Irregular Variable Length Code (IrVLC) to that of a serially-concatenated inner code...
Iterative Detection of Three-Stage Concatenated FFH-MFSK (2008)
Ahmed, S., Maunder, R. G., Yang, L-L., Hanzo, L.
Serially concatenated and iteratively decoded Irregular Variable Length Coding (IrVLC) combined with precoded Fast Frequency Hopping (FFH) M-ary Frequency Shift Keying (MFSK) is considered. We employ...
S. Chen, A. Wolfgang, Y. Shi, L. Hanzo
This contribution proposes a minimum bit error rate (MBER) decision feedback equaliser (DFE) designed for single-input multiple-output (SIMO) systems employing a quadrature phase shift keying (QPSK)...
I Near-instantaneously Adaptive Modulation and Filtering Based Equalisation: (2008)
C. H. Wong, M. S. Yee, C. H. Wong, L. Hanzo, B. J. Choi, S. X. Ng
S. X. Ng, F. Guo, J. Wang, L-l. Yang, L. Hanzo
Abstract – Joint source-coding, channel-coding and modulation
• Contributing Authors: (in alphabetical order) (2008)
Phillip Regalia, Erdal Arıkan, Yonina Eldar, Robert Fischer, Walid Hachem, Emmanouil Kalantzis, ...
STRATION PACKAGE PORTRAYING VIDEO SEQUENCES (2008)
The cellular channel capacity of conventional cells is shown to vary dramatically as a function of the distance from the base station. An intelligent 7.3 kBaud adaptive videophone transceiver is...
ON THE DESIGN OF TURBO TRELLIS CODED MODULATION SCHEMES USING SYMBOL-BASED EXIT CHARTS (2008)
S. X. Ng, J. Kliewer, O. Alamri, L. Hanzo
Abstract – In this paper we design bandwidth efficient
ON THE DESIGN OF TURBO TRELLIS CODED MODULATION SCHEMES USING SYMBOL-BASED EXIT CHARTS (2008)
S. X. Ng, J. Kliewer, O. R. Alamri, L. Hanzo
Abstract – In this paper we design bandwidth efficient
Maunder, R. G., Wang, J., Ng, S. X., Hanzo, L.
In this paper we propose a novel Irregular Variable Length Coding (IrVLC) scheme for near-capacity joint source and channel coding. We employ a number of component Variable Length Coding (VLC)...
Maunder, R. G., Wang, J., Ng, S. X., Yang, L-L., Hanzo, L.
In this paper we propose a novel Irregular Variable Length Coding (IrVLC) scheme for near-capacity joint source and channel coding. We employ a number of component Variable Length Coding (VLC)...
Recently, the authors of this paper proposed Systematic Luby Transform (SLT) codes and their soft decoding using the classic loglikelihood message passing algorithm for transmission over hostile...
Pham Quang, A, Yang, L-L, Hanzo, L.
Abstract—Since the different bits of the compressed video sequence produced by the BBC’s wavelet-based video codec exhibit different error sensitivity, efficient Unequal Error Protection (UEP)...
In this paper, we design and investigate a novel Interleave Division Multiplexing based Space-Time Code (IDM-STC) in the context of cooperative communications. We outline the particular signalling...
Abstract—In this paper we propose and investigate an iterative code acquisition scheme assisted by both search space reduction and iterative Massage Passing (MP), which was designed for the Direct...
Wang, L, Xu, L, Chen, S, Hanzo, L
Abstract—Iterative K-best sphere detection (SD) and channel decoding is appealing, since it is capable of achieving a nearmaximum-a-posteriori (MAP) performance at a low complexity. However, a...
Minimum Symbol Error Rate Turbo Multiuser Beamforming Aided QAM Receiver (2008)
This paper studies a novel iterative soft interference cancellation (SIC) aided beamforming receiver designed for highthroughput quadrature amplitude modulation systems communicating over additive...
Wang, L., Xu, L., Chen, S., Hanzo, L.
A generic sphere-detection (SD) scheme is proposed, which substantially reduces the detection complexity by decomposing it into two stages, namely the generic iterative search-centre-update phase and...
Adaptive Nonlinear Least Bit Error-Rate Detection for Symmetric RBF Beamforming (2008)
Chen, S., Wolfgang, A., Harris, C.J., Hanzo, L.
A powerful symmetrical radial basis function (RBF) aided detector is proposed for nonlinear detection in so-called rank-deficient multipleantenna assisted beamforming systems. By exploiting the...
Designed is an error-resilient, yet high-throughput interleave division multiplexing based space-time code suitable for multi-source co-operation. Its achievable rate, power efficiency and...
A 2.35 KBPS JOINT-DETECTION CDMA SPEECH TRANSCEIVER (2008)
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Iterative Code Acquisition for DS-UWB Downlink using Multiple-Component Decoders (2008)
Iterative code acquisition schemes employing beneficially chosen higher-order generator polynomials and multiple-component decoders are analysed in terms of the correct detection probability of the...
On Multi-User EXIT Chart Analysis Aided Turbo-Detected MBER Beamforming Designs (2008)
Abstract—This paper studies the mutual information transfer characteristics of a novel iterative soft interference cancellation (SIC) aided beamforming receiver communicating over both additive...
Precise bit-error-ratio (BER) analysis of an asynchronous QPSK-modulated direct-sequence code-division multiple-access system using random quaternary spreading sequences for transmission over...
Iterative Near-Maximum-Likelihood Detection in Rank-Deficient Downlink SDMA Systems (2008)
Wei, C.Y., Akhtman, J., Ng, S.X., Hanzo, L.
Abstract—In this paper, a precoded and iteratively detected downlink multiuser system is proposed, which is capable of operating in rankdeficient scenarios, when the number of transmitters exceeds...
Xu, C., Hu, B., Yang, L-L., Hanzo, L.
A novel Ant Colony Optimization (ACO) based Multi-User Detector (MUD) is designed for the synchronous Multi-Functional Antenna Array (MFAA) assisted Multi-Carrier Direct-Sequence Code-Division...
Semi-Blind Joint Maximum Likelihood Channel Estimation and Data Detection for MIMO Systems (2008)
Abuthinien, M., Chen, S., Hanzo, L.
Semi-blind joint maximum likelihood (ML) channel estimation and data detection is proposed for multiple-input multiple-output (MIMO) systems. The joint ML optimization over channel and data is...
Iterative Multiuser Minimum Symbol Error Rate Beamforming Aided QAM Receiver (2008)
A novel iterative soft interference cancellation (SIC) aided beamforming receiver is developed for high-throughput quadrature amplitude modulation systems. The proposed SIC based minimum symbol error...
Abstract | A decision feedback equalizer (DFE) scheme is derived based on multiple-hyperplane partitioning of signal space for detecting M-ary PAM symbols transmitted through a noisy intersymbol...
An adaptive minimum bit error rate (MBER) linear multiuser detector (MUD) is proposed for DS-CDMA systems. Based on the approach of kernel density estimation for approximating the bit error rate...
Genetic Algorithm Aided Design of Component Codes for Irregular Variable Length Coding (2007)
In this paper we propose a novel Real-Valued Free Distance Metric (RV-FDM) for comparing the error correction capabilities of Variable Length Error Correction (VLEC) codebooks that have the same...
Abstract. In this treatise a range of Line Spectrum Frequency (LSF) Vector Quantization (VQ) schemes were studied comparatively, which were designed for wideband speech codecs. Both predictive...
S. Chen, B. Mulgrew, A. K. Samingan, L. Hanzo
The design of linear equalizer and decision feedback equalizer (DFE) is typically based on the minimum mean square error (MMSE) principle, as this leads to simple and eective adaptive implementation...
The paper considers the problem of constructing adaptive minimum bit error rate (MBER) neural network equalizers for binary signalling. Motivated from a kernel density estimation of the bit error...
Adaptive Minimum Bit Error Rate (2007)
S. Chen, N. N. Ahmad, L. Hanzo
Adaptive antenna array assisted spatial processing has shown real promise in terms of substantial capacity enhancements in wireless communications. In this paper, a novel adaptive beamforming...
1 The Super-Trellis Structure of Turbo Codes (2007)
acknowledged. Our sincere thanks are also due to the anonymous reviewers and to Jozef Hamorsky, Lorenzo Piazzo and Andreas Knickenberg for proofreading the manuscript.
STRATION PACKAGE PORTRAYING VIDEO SEQUENCES (2007)
A comparative study of arbitrarily programmable, but �xed-rate videophonecodecs using quarter common intermediate format �QCIF � video sequences scanned at 10 frames�s is o�ered. These...
Abstract---The paper derives a stochastic-gradient minimum symbolerror-rate (MSER) algorithm, called the least symbol error rate (LSER), for training the linear equalizer and linear-combiner decision...
Adaptive Multiuser Receiver Using a Support Vector Machine Technique (2007)
S. Chen, A. K. Samingan, L. Hanzo
Abstract--- The paper investigates the application of an emerging learning technique, called support vector machines (SVMs), to construct an adaptive nonlinear multiuser detector (MUD) for...
Abstract. We consider sample-by-sample adaptive training of twoclass neural network classiers. Specic applications that we have in mind are communication channel equalization and code-division...
Abstract — A detector based on multiple-hyperplane partitioning of the signal space is derived for realizing the optimal Bayesian decision feedback equaliser (DFE). It is known that the optimal...
A. K. Samingan, S. Chen, L. Hanzo
Abstract--- An adaptive minimum symbol error rate (MSER) linear multiuser detector (MUD) is proposed for direct sequence code division multiple access (DS-CDMA) systems employing multilevel...
Turbo-equalised H.263based video telephony for GSM/GPRS,” Globecom 2000 (2007)
P. Cherriman, B. L. Yeap, L. Hanzo
The performance of turbo-equalised GSM/GPRS-like videophone transceivers is studied over dispersive fading channels as a function of the number of turbo-equalisation iterations. Iteration gains in...
Block-Adaptive Kernel-Based CDMA Multiuser Detector (2007)
Abstract---The paper investigates the application of a recently introduced learning technique, called the relevance vector machine (RVM) to construct a block-adaptive kernel-based nonlinear multiuser...
COMBINED TRELLIS{CODED MODULATION AND BLIND TURBO EQUALISATION (2007)
S. Vlahoyiannatos, S. X. Ng, L. Hanzo
In this contribution, the Per-Survivor Processing (PSP) based blind turbo equalization is combined with various coded modulation schemes, whichemploycombined modulation and channel coding techniques....
POWER-CONTROL FOR MULTIMODE TRANSCEIVERS (2007)
The performance of a power-control algorithm �7� suitable for multi-mode transceivers is investigated using 1, 2 and 4 bit�symbol modems. It is shown that the algorithm is suitable for...
P. Cherriman, S. X. Ng, L. Hanzo
Decision Feedback Equaliation (DFE) aided wideband Burstby-Burst (BbB) Adaptive Trellis Coded Modulation (TCM), Turbo Trellis Coded Modulation (TTCM) and Bit-Interleaved Coded Modulation (BICM) are...
Near-Capacity Irregular Variable Length Coding and Irregular Unity Rate Coding (2007)
In this contribution we introduce an EXtrinsic Information Transfer (EXIT) chart matching technique for the design of two serially concatenated irregular codecs, each constituted by a variety of...
Chen, S., Wolfgang, A., Hanzo, L.
This paper investigates a blind space–time equaliser (STE) designed for single-input multiple-output (SIMO) systems that employ high-throughput quadrature amplitude modulation schemes. A constant...
Coherent and Differential Downlink Space-Time Steering Aided Generalised Multicarrier DS-CDMA (2007)
El-Hajjar, M, Hu, B, Yang, L-L, Hanzo, L
This paper presents a generalised MultiCarrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink. In...
We analyse the characteristics of the Non-Coherent (NC) Multiple Transmit/Multiple Receive (MTMR) antenna aided Multi-Carrier (MC) DS-CDMA downlink employing a serial search based acquisition scheme,...
Iteratively Decoded Irregular Variable Length Coding and Trellis Coded Modulation (2007)
Maunder, R. G., Wang, J., Ng, S. X., Yang, L-L., Hanzo, L.
In this paper we propose a novel Irregular Variable Length Coding (IrVLC) scheme for near-capacity joint source and channel coding. We employ a number of Variable Length Coding (VLC) component...
Iteratively Decoded Irregular Variable Length Coding and Trellis Coded Modulation (2007)
Maunder, R. G., Wang, J., Ng, S. X., Hanzo, L.
In this paper we propose a novel Irregular Variable Length Coding (IrVLC) scheme for near-capacity joint source and channel coding. We employ a number of Variable Length Coding (VLC) component...
Layered Steered Space-Time Codes Using Iterative Detection (2007)
El-Hajjar, M., Alamri, O., Hanzo, L.
This paper presents a novel multifunctional multiple-input multiple-output (MIMO) scheme that combines the benefits of the Vertical Bell Labs Layered Space-Time (VBLAST) scheme, of Space-Time Codes...
Ahmed, S., Maunder, R. G., Yang, L-L., Ng, S. X., Hanzo, L.
Serially concatenated and iteratively decoded Irregular Variable Length Coding (IrVLC) combined with precoded Fast Frequency Hopping (FFH) M-ary Frequency Shift Keying (MFSK) is considered. The...
El-Hajjar, M., Maunder, R. G., Alamri, O., Ng, S. X., Hanzo, L.
In this paper we consider serially concatenated and iteratively decoded Irregular Variable Length Coding (IrVLC) combined with precoded Differential Space-Time Spreading (DSTS) aided multidimensional...
El-Hajjar, M, Tee, R, Hu, B, Yang, L-L, Hanzo, L
This paper presents a novel generalised Multi-Carrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the...
Ahmed, S, Yang, L-L, Hanzo, L, Guo, F
In this contribution, soft-input-soft-output (SISO) decoding aided successive interference cancellation (SIC) is considered in fast frequency hopping (FFH), M-ary frequency shift keying (MFSK) using...
Ant-Colony-Based Multiuser Detection for MC DS-CDMA Systems (2007)
In this contribution we present a novel ant colony optimization (ACO) based multi-user detector (MUD) designed for synchronous multi-carrier direct sequence code division multiple access (MC DSCDMA)...
Luby Transform Coding Aided Bit-Interleaved Coded Modulation for the Wireless Internet (2007)
Tee, R, Nguyen Dang, T, Ng, S, Yang, L-L, Hanzo, L
Bit-Interleaved Coded Modulation using Iterative Decoding (BICM-ID) is amalgamated with Luby Transform (LT) coding. The resultant joint design of the physical and data link layer substantially...
Clustering-Based Symmetric Radial Basis Function Beamforming (2007)
Chen, S., Labib, K., Hanzo, L.
We propose a clustering-based symmetric radial basis function (SRBF) detector for multiple-antenna assisted beamforming systems. By exploiting the inherent symmetry of the underlying optimal Bayesian...
Pham Quang, A., Yang, L-L, Hanzo, L
The intentionally imposed or inherent unintentional residual redundancy found in source encoded bitstreams can be exploited for supporting joint SoftBit-Source Decoding and Channel Decoding, which...
This paper studies the mutual information transfer characteristics of a novel low-complexity Bayesian Multiuser Detector (MUD) proposed for employment in Space Division Multiple Access (SDMA) aided...
In this contribution we investigate the single-user-bound performance of a direct-sequence code-division multiple-access (DS-CDMA) system, where one source mobile terminal (MT) communicates with its...
In relay-assisted cellular wireless communications the mobile terminals (MTs) near the base-station (BS) are usually preferred to being chosen as the relays for assisting the uplink transmission, for...
Chen, S., Wolfgang, A., Shi, Y., Hanzo, L.
This contribution proposes a minimum bit error rate (MBER) decision feedback equaliser (DFE) designed for single-input multiple-output (SIMO) systems employing a quadrature phase shift keying (QPSK)...
Jiang, M, Akhtman, J, Hanzo, L.
Multiple-Input-Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems have recently attracted substantial research interest. However, compared to Single-Input-Single-Output...
The performance of large area synchronous (LAS) direct sequence code division multiple access (DS-CDMA) assisted ad hoc networks is investigated in the context of a single-hop infinite mesh of...
Differentially Coherent Code Acquisition in the MIMO-Aided Multi-Carrier DS-CDMA Downlink (2007)
Both differentially coherent and non-coherent code acquisition schemes designed for the multiple-input multiple-output (MIMO)-aided multi-carrier (MC)-DS-CDMA downlink are analysed, when...
Wolfgang, A., Akhtman, J., Chen, S., Hanzo, L.
A novel Decision-Feedback (DF) aided reduced complexity Maximum Likelihood (ML) Space-Time Equalizer (STE) designed for a single-carrier system is introduced. Two different methods of incorporating...
Multiuser MIMO-OFDM for Next-Generation Wireless Systems (2007)
This overview portrays the 40-year evolution of orthogonal frequency division multiplexing (OFDM) research. The amelioration of powerful multicarrier OFDM arrangements with multiple-input...
Optimal Lattice-Reduction Aided Successive Interference Cancellation for MIMO Systems (2007)
In this letter, we investigated the optimal minimummean-squared-error (MMSE) based successive interference cancellation (SIC) strategy designed for lattice-reduction aided multiple-input...
Layered Steered Space-Time Codes and their capacity (2007)
A capacity analysis of a multifunctional multiple-input multiple-output system that combines the benefits of vertical Bell Labs space-time scheme, space-time block codes and beamforming is presented.
Joint Maximum Likelihood Channel Estimation and Data Detection for MIMO Systems (2007)
Abuthinien, M., Chen, S., Wolfgang, A., Hanzo, L.
Abstract—Blind and semiblind adaptive schemes are proposed for joint maximum likelihood (ML) channel estimation and data detection for multiple-input multiple-output (MIMO) systems. The joint ML...
Fading Performance Evaluation of Adaptive MSER Beamforming Receiver for QAM Systems (2007)
Livingstone, A., Chen, S., Hanzo, L.
The ever-increasing demand for mobile communication capacity has motivated the development of adaptive antenna array assisted spatial processing techniques for bandwidth efficiency, high-throughput...
Turbo Decoding and Detection for Wireless Applications (2007)
Hanzo, L., Woodard, J.P., Robertson, P
A historical perspective of turbo coding and turbo transceivers inspired by the generic turbo principles is provided, as it evolved from Shannon’s visionary predictions. More specifically, we...
Performance Analysis of Iteratively Decoded Variable-Length Space-Time Coded Modulation (2007)
Ng, S.X., Liu, W., Wang, J., Tao, M., Hanzo, L
It is demonstrated that iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) schemes are capable of simultaneously providing both coding gain as well as multiplexing and...
Ng, S. X., Wang, J., Tao, M., Hanzo, L.
An Iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) scheme capable of simultaneously providing both coding and iteration gain as well as multiplexing and diversity gain is...
Joint Iterative Decoding of Trellis-Based VQ and TCM (2007)
Maunder, R. G., Kliewer, J., Ng, S. X., Wang, J., Hanzo, L.
A joint video and channel coded system employing an iteratively decoded serial concatenation of a Vector Quantization (VQ) based video codec and a Trellis-Coded Modulation (TCM) scheme is proposed....
An Optimized-Hierarchy-Aided Approximate Log-MAP Detector for MIMO Systems (2007)
Akhtman, J., Wolfgang, A., Chen, S., Hanzo, L.
Abstract—In this paper we propose a novel Space Division Multiplexing (SDM) detection method. The proposed technique constitutes a list search method and may be regarded as an advanced extension of...
Ng, S. X., Wang, J., Tao, M., Hanzo, L.
An Iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) scheme capable of simultaneously providing both coding and iteration gain as well as multiplexing and diversity gain is...
Accurate BER of MC-DS-CDMA over Rayleigh Fading Channels (2007)
Smida, B., Hanzo, L., Affes, S.
In this paper, we derive an accurate average bit error rate (BER) of Rayleigh faded MC-DS-CDMA in the context of asynchronous transmission and random spreading sequences. The analysis is based on the...
Ni, S., Blogh, J.S., Hanzo, L.
The network performance of a frequency division duplex and time division duplex (TDD) code division multiple access (CDMA)-based system is investigated using system parameters similar to those of the...
Ng, S. X., Wang, J., Tao, M., Hanzo, L.
An Iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) scheme capable of simultaneously providing both coding and iteration gain as well as multiplexing and diversity gain is...
Pham, A.Q., Wang, J., Yang, L-L., Hanzo, L.
In this paper, we characterize the achievable performance of a wavelet encoding-based videophone system, which further compresses and protects the wavelet-based video codec's bit-stream with the aid...
Othman, N.S., El-Hajjar, M., Alamri, O., Hanzo, L.
Jointly optimised iterative source- and channel-decoding is used for enhancing the error resilience of the Adaptive Multi Rate WideBand (AMR-WB) speech codec. The resultant AMR-WB coded speech signal...
Channel Prediction Aided Coded Modulation Assisted Eigen-Beamforming (2007)
Ng, S.X., Liu, W., Yang, L-L., Hanzo, L.
Eigen-beamforming is capable of providing attractive performance gains in the context of Multiple-Input Multiple-Output (MIMO) systems, provided that accurate Channel State Information (CSI) is...
Joint Iterative Decoding of Trellis-Based VQ and TCM (2007)
Maunder, R. G., Kliewer, J., Ng, S. X., Wang, J., Hanzo, L.
A joint video and channel coded system employing an iteratively decoded serial concatenation of a Vector Quantization (VQ) based video codec and a Trellis-Coded Modulation (TCM) scheme is proposed....
Joint Iterative Decoding of Trellis-Based VQ and TCM (2007)
Maunder, R. G., Kliewer, J., Ng, S. X., Wang, J., Hanzo, L.
A joint video and channel coded system employing an iteratively decoded serial concatenation of a Vector Quantization (VQ) based video codec and a Trellis-Coded Modulation (TCM) scheme is proposed....
Xu, C., Hu, B, Yang, L-L, Hanzo, L
In this contribution we propose and investigate a transmitter preprocessing scheme designed for downlink transmission in multicarrier direct-sequence code-division multiple-access (MC DS-CDMA)...
Iterative Receiver Architectures for MIMO-OFDM (2007)
In this paper we propose a turbo-detected multiantenna-multi-carrier receiver scheme. Following the philosophy of the turbo processing, our turbo MIMO-OFDM receiver comprises a succession of...
Eigen-beamforming is capable of providing attractive performance gains in the context of multiple-input multiple-output systems, provided accurate channel state information (CSI) is available....
Parallel Interference Cancellation Based Turbo Space-Time Equalization in the SDMA Uplink (2007)
Wolfgang, A., Chen, S., Hanzo, L.
A novel Parallel Interference Cancellation (PIC) based turbo Space Time Equalizer (STE) structure designed for multiple antenna assisted uplink receivers is introduced. The proposed receiver...
Liu, W., Ng, S. X., Yang, L-L., Hanzo, L.
Eigen-beamforming is capable of providing attractive performance gains in the context of multiple-input multiple-output systems, provided accurate channel state information (CSI) is available....
Eigen-beamforming is capable of providing attractive performance gains in the context of multiple-input multiple-output systems, provided accurate channel state information (CSI) is available....
Blind joint maximum likelihood channel estimation and data detection for SIMO systems (2007)
Chen, S., Yang, X.C., Chen, L., Hanzo, L.
A blind adaptive scheme is proposed for joint maximum likelihood (ML) channel estimation and data detection of singleinput multiple-output (SIMO) systems. The joint ML optimisation over channel and...
Near-Instantaneously Adaptive Cooperative Schemes based on Space-Time Block Codes and V-BLAST (2007)
Blind Joint Maximum Likelihood Channel Estimation and Data Detection for SIMO Systems (2007)
Chen, S., Yang, X.C., Chen, L., Hanzo, L.
A blind adaptive scheme is proposed for joint maximum likelihood (ML) channel estimation and data detection of singleinput multiple-output (SIMO) systems. The joint ML optimisation over channel and...
Blind joint maximum likelihood channel estimation and data detection for SIMO systems (2007)
Chen, S., Yang, X.C., Chen, L., Hanzo, L.
A blind adaptive scheme is proposed for joint maximum likelihood (ML) channel estimation and data detection of singleinput multiple-output (SIMO) systems. The joint ML optimisation over channel and...
Adaptive Differential Space-Time-Spreading-Assisted Turbo-Detected Sphere Packing Modulation (2007)
El-Hajjar, M, Alamri, O., Hanzo, L.
In this contribution a novel adaptive differential space-time spreading assisted turbo detected sphere packingmodulation scheme is proposed for improving the achievable throughput of code division...
Ahmed, S., Ng, S.X., Yang, L.L., Hanzo, L.
Iterative decoding (ID) aided fast frequency hopping (FFH), M-ary frequency shift keying (MFSK) using clipped combining in multiple access (MA) channels is investigated. All users’ data are...
Abstract—In this paper, we consider the joint code-rate and spreading-factor optimisation of turbo-style iterative joint detection and decoding assisted single-carrier interleave division multiple...
Quadrature Amplitude Modulation (QAM) is a bandwidth-efficient transmission technique. The exact average Bit Error Ratio (BER) of the maximum-minimum-distance rectangular QAM (R-QAM) constellation is...
Dohler, M, McLaughlin, S, Sweeney, P, Hanzo, L.
This article presents a comprehensive overview of some of the research conducted within Mobile VCE’s Core Wireless Access Research Programme,1 a key focus of which has naturally been on MIMO...
A Turbo Detection and Sphere-Packing-Modulation-Aided Space-Time Coding Scheme (2007)
Alamri, O, YEAP, B-J., Hanzo, L
Arecently proposed space-time block-coding (STBC) signal-construction method that combines orthogonal design with sphere packing (SP), referred to here as STBC-SP, has shown useful performance...
Systematic Luby Transform Codes and their Soft Decoding (2007)
Nguyen, T.D., Yang, L-L., Hanzo, L.
Luby Transform codes (LT) were originally designed for the Binary Erasure Channel (BEC) encountered owing to randomly dropped packets in the statistical multiplexing aided classic wireline-based...
Wei, C.Y., Wang, J., Hanzo, L.
We analyze a precoded and iteratively detected downlink multiuser system employing imperfect Spatio-Temporal Channel Impulse Response at the Transmitters (ST-CIRT) with the aid of Extrinsic...
Ahrens, A., Liu, W., Ng, S.X., Kuehn, V., Yang, L-L., Hanzo, L.
In this contribution iteratively detected spatial division multiplexing is investigated under the constraint of a fixed data throughput. Existing bit loading and transmit power allocation techniques...
Iteratively Detected Multi-Carrier Interleave Division Multiple Access (2007)
In this paper a novel transceiver is proposed, which amalgamates the benefits of multi-carrier transmissions with those of interleave division multiple access (IDMA), leading to the concept of...
Advanced Channel Estimation for MIMO-OFDM in Realistic Channel Conditions (2007)
An advanced decision-directed channel estimation scheme is proposed, which is suitable for employment in a wide range of multi-antenna multi-carrier systems as well as for communications over the...
Xu, C., Hu, B, Yang, L-L., Hanzo, L.
In this contribution we propose and investigate a transmitter preprocessing scheme for downlink transmission in the multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) systems...
We examine both differentially coherent and non-coherent code acquisition schemes designed for the multiple transmit/receive antenna assisted Multi-Carrier (MC)-DS-CDMA downlink, when communicating...
Performance of MIMO Systems using Transmitter Preprocessing Based on Limited Noisy Feedback (2007)
Yang, D., Yang, L-L., Hanzo, L.
In this contribution we investigate the performance of Spatial Division Multiple Access (SDMA) multiple-input multiple-output (MIMO) systems using transmitter preprocessing, when the channel...
Decision Directed Channel Estimation Employing Projection Approximation Subspace Tracking (2007)
The attainable capacity and integrity of a state-of-the-art broadband multi-carrier communication system is highly sensitive to the accuracy of the information available concerning the channel...
Subspace Tracking Based Blind MIMO Transmit Preprocessing (2007)
Liu, W., Yang, L.L., Hanzo, L.
Abstract—In this contribution projection approximation subspace tracking using deflation (PASTD) is investigated in the context of MIMO transmit preprocessing systems by exploiting the specific...
Nguyen, T.D., Guo, F.C., Yang, L-L., Hanzo, L.
Luby Transform codes (LT) were originally designed for the Binary Erasure Channel (BEC) encountered owing to randomly dropped packets in the statistical multiplexing aided Internet, where transmitted...
Near-Instantaneously Adaptive Cooperative Schemes based on Space-Time Block Codes and V-BLAST (2007)
El-Hajjar, M., Zummo, S., Hanzo, L.
In this paper we propose two adaptive schemes for improving the achievable throughput of cooperative diversity aided wireless networks. These schemes are capable of accommodating the channel...
Orthogonal Frequency Division Multiplexing (OFDM) has been employed in numerous wireless standards. However, the performance of OFDM systems is degraded by both the Carrier Frequency Offset (CFO) and...
Ahmed, S., Yang, L-L., Hanzo, L.
We propose a novel bit error ratio (BER) analysis technique for fast frequency hopping (FFH) assisted M-ary frequency shift keying (MFSK) using product combining (PC), when the channel is...
Adaptive Radial Basis Function Detector for Beamforming (2007)
Chen, S., Labib, K., Kang, R., Hanzo, L.
We consider nonlinear detection in rank-deficient multiple-antenna assisted beamforming systems. By exploiting the inherent symmetry of the underlying optimal Bayesian detection solution, a symmetric...
Near-Instantaneously Adaptive Cooperative Schemes based on Space-Time Block Codes and V-BLAST (2007)
Symmetric Kernel Detector for Multiple-Antenna Aided Beamforming Systems (2007)
Chen, S., Wolfgang, A., Harris, C.J., Hanzo, L.
We propose a powerful symmetric kernel classifier for nonlinear detection in challenging rank-deficient multipleantenna aided communication systems. By exploiting the inherent odd symmetry of the...
Tee, R.Y.S., Alamri, O., Ng, S.X., Hanzo, L.
A multilevel coding (MLC) scheme invoking sphere packing (SP) modulation combined with space time block coding (STBC) is designed. The coding rates of each of the MLC component codes are determined...
Alamri, O., Wang, J., Ng, S.X., Hanzo, L.
Conventional two-stage turbo-detected schemes typically suffer from a Bit Error Rate (BER) floor, preventing them from achieving infinitesimally low BER values, especially, when the inner coding...
This constribution considers nonlinear space-time equalisation (STE) designed for single-input multiple-output (SIMO) systems. By exploiting the inherent symmetry of the underlying optimal Bayesian...
MBER Turbo Multiuser Beamforming Aided QPSK Receiver Design using EXIT Chart Analysis (2007)
This paper studies the mutual information transfer characteristics of a novel iterative soft interference cancellation (SIC) aided beamforming receiver designed for quadrature phase shift keying...
Luby Transform Coding Aided Iterative Detection for Downlink SDMA Systems (2007)
Wei, C-Y, Nguyen Dang, T, Wu, N, Akhtman, J., Yang, L-L, Hanzo, L
A Luby Transform (LT) coded downlink Spatial Division Multiple Access (SDMA) system using iterative detection is proposed, which invokes a low-complexity near-Maximum-Likelihood (ML) Sphere Decoder...
Erasure Insertion in RS-Coded SFH MFSK Subjected to Tone Jamming and Rayleigh Fading (2007)
The achievable performance of Reed Solomon (RS) coded slow frequency hopping (SFH) assisted M-ary frequency shift keying (MFSK) using various erasure insertion (EI) schemes is investigated, when...
Efficient Computation of EXIT Functions for Nonbinary Iterative Decoding (2006)
Kliewer, Jorg, Ng, S.X, Hanzo, L
The calculation of nonbinary extrinsic information transfer charts for the iterative decoding of concatenated index-based codes is addressed. We show that the extrinsic information at the output of a...
Multiuser MIMO-OFDM Systems using Subcarrier Hopping (2006)
Recently space division multiple access (SDMA) assisted multiple-input–multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems invoking multiuser detection (MUD) techniques...
Iterative MIMO Detection for Rank-Deficient Systems (2006)
Wolfgang, A., Akhtman, J., Chen, S., Hanzo, L.
In this letter, a novel iterative multiple-input multiple-output (MIM)O detector reminiscent of sphere decoding (SD) is presented. Its main benefit is that in contrast to other softinput soft-output...
Downlink Space–Time Spreading Using Interference Rejection Codes (2006)
In this paper, the authors will investigate the performance of a loosely synchronized (LS) code-based space–time spreading (STS) scheme in comparison to that of classic Walsh code and pseudonoise...
Noise Correlation-Aided Iterative Decoding for Magnetic Recording Channels (2006)
Vanichchanunt, P, Woradit, K, Nakpeerayuth, S, Wuttisittikulkij, L, Hanzo, L
In this paper, three noise correlation-aided iterative decoding schemes are proposed for magnetic recording channels, where the correlation is imposed by the equalizer's spectral shaping effect. The...
Performance Limitation of Subband Adaptive Equalisers (2006)
Mohamod, H., Weiss, S., Rupp, M., Hanzo, L.
The aim of this reported work was identifying and quantifying limitation for the subband adaptive equalisers. The derived Wiener solution is compared against simulations for the subband equaliser,...
Chen, S., Hanzo, L., Livingstone, A.
This paper proposes a space-time decision feedback equalization (ST-DFE) assisted multiuser detection (MUD) scheme for multiple receiver antenna aided space division multiple access systems. A...
The exact average bit error ratio (BER) of the rectangular quadrature amplitude modulation (QAM) constellation is studied in the context of asynchronous co-channel interference (CCI) and Nakagami-m...
On the Performance of Band-Limited Asynchronous DS-CDMA over Nakagami-m Channels (2006)
Wei, H., Yang, L-L., Hanzo, L.
In this paper we investigated the BER performance of DS-CDMA using various chip-waveforms, which include three time-limited chip-waveforms and two band-limited chipwaveforms. Closed-form formulae...
Liew, T.H., Yang, L-L., Hanzo, L.
The novel family of redundant residue number system (RRNS) codes is studied. RRNS codes constitute maximum–minimum distance block codes, exhibiting identical distance properties to Reed–Solomon...
Iterative Equalization and Source Decoding for Vector Quantized Sources (2006)
Yang, L-L., Wang, J., Maunder, R. G., Hanzo, L.
In this contribution an iterative (turbo) channel equalization and source decoding scheme is considered. In our investigations the source is modelled as a Gaussian-Markov source, which is compressed...
Iterative Equalization and Source Decoding for Vector Quantized Sources (2006)
Yang, L-L., Wang, J., Maunder, R. G., Hanzo, L.
Abstract—In this contribution an iterative (turbo) channel equalization and source decoding scheme is considered. In our investigations the source is modelled as a Gaussian-Markov source, which is...
Minimum Bit-Error Rate Design for Space-Time Equalisation-Based Multiuser Detection (2006)
Chen, S., Livingstone, A., Hanzo, L.
A novel minimum bit-error rate (MBER) space–time equalization (STE)-based multiuser detector (MUD) is proposed for multiple-receive-antenna-assisted space-division multiple-access systems. It is...
On the Uplink Performance of LAS-CDMA (2006)
Wei, H., Yang, L-L., Hanzo, L.
In this paper Large Area Synchronized (LAS)-CDMA is investigated, which exhibits a significantly better performance than the traditional random code based DS-CDMA system. Closed-form formulas are...
On the MIMO Channel Capacity of Multi-Dimensional Signal Sets (2006)
In this contribution we evaluate the capacity of Multi-Input Multi-Output (MIMO) systems using multi-dimensional PSK/QAM signal sets. It was shown that transmit diversity is capable of narrowing the...
Ng, S. X., Hanzo, L., Chung, J. Y., Cherriman, P.
Decision Feedback Equaliser (DFE) aided wideband Burst-by-Burst (BbB) Adaptive Trellis Coded Modulation (TCM), Turbo Trellis Coded Modulation (TTCM) and Bit-Interleaved Coded Modulation (BICM)...
On the MIMO Channel Capacity of Multi-Dimensional Signal Sets (2006)
In this contribution we evaluate the capacity of Multi-Input Multi-Output (MIMO) systems using multi-dimensional PSK/QAM signal sets. It was shown that transmit diversity is capable of narrowing the...
Ng, S. X., Hanzo, L., Chung, J. Y., Cherriman, P.
Decision Feedback Equaliser (DFE) aided wideband Burst-by-Burst (BbB) Adaptive Trellis Coded Modulation (TCM), Turbo Trellis Coded Modulation (TTCM) and Bit-Interleaved Coded Modulation (BICM)...
On the MIMO Channel Capacity of Multi-Dimensional Signal Sets (2006)
In this contribution we evaluate the capacity of Multi-Input Multi-Output (MIMO) systems using multi-dimensional PSK/QAM signal sets. It was shown that transmit diversity is capable of narrowing the...
Ng, S. X., Hanzo, L., Chung, J. Y., Cherriman, P.
Decision Feedback Equaliser (DFE) aided wideband Burst-by-Burst (BbB) Adaptive Trellis Coded Modulation (TCM), Turbo Trellis Coded Modulation (TTCM) and Bit-Interleaved Coded Modulation (BICM)...
Multilevel Generalised Low-Density Parity-Check Codes (2006)
Tee, R.Y.S., Kuo, F.C., Hanzo, L.
Multilevel coding invoking generalised low-density parity-check component codes is proposed, which is capable of outperforming the classic low-density parity check component codes at a reduced...
Abstract—The achievable performance of channel coded spacetime trellis (STT) codes and space-time block (STB) codes transmitted over wideband channels is studied in the context of schemes having an...
Jiang, M., Ng, S. X., Hanzo, L.
Space division multiple access (SDMA) aided orthogonal frequency division multiplexing (OFDM) systems assisted by efficient multiuser detection (MUD) techniques have recently attracted intensive...
Near-capacity three-stage MMSE turbo equalization using irregular convolutional codes (2006)
Wang, J., Ng, S.X., Wolfgang, A., Yang, L.L., Chen, S., Hanzo, L.
On the Computation of EXIT Characteristics for Symbol-Based Iterative Decoding (2006)
Kliewer, J, Ng, S. X., Hanzo, L.
In this paper we propose an efficient method for computing index-based extrinsic information transfer (EXIT) charts, which are useful for estimating the convergence properties of non-binary iterative...
Tee, R. Y. S., Ng, S. X., Hanzo, L.
A novel three-dimensional (3D) EXIT chart is developed for investigating the iterative behaviour of Multilevel Coding (MLC) invoking Multistage Decoding (MSD). The extrinsic information transfer...
Alamri, O., Ng, S. X., Guo, F., Hanzo, L.
In this contribution, we propose a purely symbolbased LDPC-coded scheme based on a Space-Time Block Coding (STBC) signal construction method that combines orthogonal design with sphere packing,...
Multi-user OFDM employing genetic algorithm aided minimum bit error rate multi-user detection (2006)
Mellin Transform Based Performance Analysis of Fast Frequency Hopping Using Product Combining (2006)
Symmetric radial basis function network equaliser (2006)
Chen, S., Wolfgang, A., Benedetto, S., Dubamet, P., Hanzo, L.
Noise Correlation-Aided Iterative Decoding for Magnetic Recording Channels (2006)
Vanichchanunt, P, Woradit, K, Nakpeerayuth, S, Wuttisittikulkij, L, Hanzo, L
Iterative Equalization and Source Decoding for Vector Quantized Sources (2006)
Wang, J., Maunder, R. G., Hanzo, L.
In this contribution an iterative (turbo) channel equalization and source decoding scheme is considered. In our investigations the source is modelled as a Gaussian-Markov source, which is compressed...
Abstract—The achievable performance of channel coded spacetime trellis (STT) codes and space-time block (STB) codes transmitted over wideband channels is studied in the context of schemes having an...
Jiang, M., Ng, S. X., Hanzo, L.
Space division multiple access (SDMA) aided orthogonal frequency division multiplexing (OFDM) systems assisted by efficient multiuser detection (MUD) techniques have recently attracted intensive...
How, H.T., Liew, T.H., Kuan, E-L., Yang, L-L., Hanzo, L.
A burst-by-burst (BbB) adaptive speech transceiver is proposed, which can drop its source coding rate and speech quality under transceiver control in order to invoke a more error resilient modem mode...
Yang, L-L., Wei, H., Hanzo, L.
In this contribution, we study a reduced-complexity multiuser detection aided multicarrier direct-sequence code-division multipleaccess (MC DS-CDMA) scheme, which employs both time (T)-domain and...
Abstract—The achievable performance of channel coded spacetime trellis (STT) codes and space-time block (STB) codes transmitted over wideband channels is studied in the context of schemes having an...
Jiang, M., Ng, S. X., Hanzo, L.
Space division multiple access (SDMA) aided orthogonal frequency division multiplexing (OFDM) systems assisted by efficient multiuser detection (MUD) techniques have recently attracted intensive...
This paper investigates a modifying orthogonality factor for synchronous DS-CDMA uplink in dispersive Rician multipath fading channels, which reflects upon the effects of specular path power as well...
In this contribution we investigate both differentially coherent and noncoherent code acquisition schemes in the multiple transmit/receive antenna aided DS-CDMA downlink, when communicating over...
Near-Optimum Nonlinear Soft Detection for Multiple-Antenna Assisted OFDM (2006)
Jiang, M., Akhtman, J., Hanzo, L.
In this contribution, a nonlinear hybrid detection scheme based on a novel soft-information assisted Genetic Algorithm (GA) is proposed for a Turbo Convolutional (TC) coded Space Division...
Wolfgang, A., Akhtman, J., Chen, S., Hanzo, L.
A novel Decision-Feedback (DF) aided reduced complexity Maximum Likelihood (ML) Space-Time Equalizer (STE) designed for single-carrier multiple antenna assisted receivers is introduced. The proposed...
Linear Beamforming Assisted Receiver for Binary Phase Shift Keying Modulation Systems (2006)
The paper considers adaptive beamforming assisted receiver for multiple antenna aided multiuser systems that employ binary phase shift keying (BPSK) modulation. The standard minimum mean square error...
A Sphere-Packing Modulated Space-Frequency Diversity Aided FFH-Assisted DSTBC System (2006)
Wu, N., Ahmed, S., Alamri, O., Yang, L-L., Hanzo, L.
In this treatise we demonstrate, how a high spatial and frequency diversity can be achieved by combining Differential Space-Time Block Coding (DSTBC) and Fast Frequency Hopping (FFH). The proposed...
Low Complexity Approximate Log-MAP Detection for MIMO Systems (2006)
In this paper we propose a novel low-complexity Log-MAP space-time detection method, which can be regarded as an advanced extension of the Complex Sphere Decoder (CSD). We demonstrate that as opposed...
Iterative Minimum Bit Error Rate Multiuser Detection in Multiple Antenna Aided OFDM (2006)
Xu, L., Tan, S., Chen, S., Hanzo, L.
A novel iterative Multiuser Detector (MUD) is proposed for employment in Space Division Multiple Access (SDMA) aided Orthogonal Frequency Division Multiplexing (OFDM) systems, where the uplink...
An efficient symbol-flipping based decoding algorithm designed for nonbinary Generalized Low-Density Parity-Check (GLDPC) codes is proposed. By extending the concept of the Weighted Bit Flip Voting...
An accurate closed-form expression is derived for calculating the average BER in an asynchronous DS-CDMA system using random complex-valued spreading sequences for transmission over Rayleigh...
El-Hajjar, M., Alamri, O., Hanzo, L.
A novel Differentially encoded Space-Time Spreading (DSTS) scheme using two transmit antennas and Sphere Packing (SP) is proposed, which we refer to as the DSTS-SP arrangement. The advocated SP-aided...
An adaptive beamforming assisted receiver is proposed for multiple antenna aided multiuser systems that employ bandwidth efficient quadrature amplitude modulation (QAM). A novel minimum symbol error...
Near-capacity three-stage MMSE turbo equalization using irregular convolutional codes (2006)
Wang, J., Ng, S.X., Wolfgang, A., Yang, L-L., Chen, S., Hanzo, L.
Traditional Turbo EQualization (TEQ) schemes suffer from residual bit errors due to the non-recursive nature of the channel imposing Inter-Symbol-Interference (ISI). The performance of the...
On the Computation of EXIT Characteristics for Symbol-Based Iterative Decoding (2006)
Kliewer, J, Ng, S. X., Hanzo, L.
In this paper we propose an efficient method for computing index-based extrinsic information transfer (EXIT) charts, which are useful for estimating the convergence properties of non-binary iterative...
Tee, R. Y. S., Ng, S. X., Hanzo, L.
A novel three-dimensional (3D) EXIT chart is developed for investigating the iterative behaviour of Multilevel Coding (MLC) invoking Multistage Decoding (MSD). The extrinsic information transfer...
Alamri, O., Ng, S. X., Guo, F., Hanzo, L.
In this contribution, we propose a purely symbolbased LDPC-coded scheme based on a Space-Time Block Coding (STBC) signal construction method that combines orthogonal design with sphere packing,...
Multi-user OFDM employing genetic algorithm aided minimum bit error rate multi-user detection (2006)
Tan, S., Xu, L., Chen, S., Hanzo, L.
Iterative multiuser receivers constitute an effective solution for transmission over Multiple Access Interference (MAI) infested channels, when invoking a combined multiuser detector and channel...
Adaptive MBER space-time DFE assisted multiuser detection for SDMA systems (2006)
Chen, S., Livingstone, A., Hanzo, L.
In this contribution we propose a space-time decision feedback equalization (ST-DFE) assisted multiuser detection (MUD) scheme for multiple antenna aided space division multiple access systems. A...
Pham, A.Q., Wang, J., Yang, L-L., Hanzo, L.
A wavelet-based videophone scheme proposed, where the video bits are Unequal Error Protection (UEP) using Irregular Convolutional Codes (IRCCs). The proposed system uses Adaptive Arithmetic Coding...
Generalized Low-Density Parity-Check Coding Aided Multilevel Codes (2006)
Tee, R.Y.S., Kuo, F.C., Hanzo, L.
Classic Low-Density Parity-Check (LDPC) codes have recently been used as component codes in Multilevel Coding (MLC) due to their impressive BER performance as well as owing to their flexible coding...
Iterative Joint Channel Estimation and Symbol Detection for Multi-User MIMO OFDM (2006)
Jiang, M., Akhtman, J., Guo, F.C., Hanzo, L.
Multiple-Input-Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems have recently attracted substantial research interest. However, compared to Single-Input-Single-Output...
Tee, R.Y.S., Nguyen, T.D., Yang, L-L., Hanzo, L.
In Bit-Interleaved Coded Modulation (BICM) the coding and modulation schemes were jointly optimized for the sake of attaining the best possible performance when communicating over fading wireless...
Three-Dimensional EXIT Chart Analysis of Iterative Detection Aided Coded Modulation Schemes (2006)
Tee, R.Y.S., Ng, S.X., Hanzo, L.
The iterative convergence of iteratively detected coded modulation schemes having different block lengths, decoding complexity and an unequal error protection capability is studied, when...
A Differential Turbo Detection Aided Sphere Packing Modulated Space-Time Coding Scheme (2006)
A signal construction method that combines orthogonal design with sphere packing has recently shown useful performance improvements over the conventional orthogonal design. In this contribution, we...
The accurate average BER calculation of an asynchronous DS-CDMA system using random spreading sequences is studied in Rayleigh fading channels. An accurate closedform expression is derived for the...
In this paper we investigate the issues of both initial and post-initial acquisition schemes in the multiple transmit/receive antenna aided DS-CDMA downlink, when communicating over uncorrelated...
Mellin Transform Based Performance Analysis of Fast Frequency Hopping Using Product Combining (2006)
Ahmed, S., Yang, L-L., Hanzo, L.
Abstract—In this contribution, we analyze the bit error rate (BER) performance of fast frequency hopping (FFH) assisted M-ary frequency shift keying (MFSK) using product combining. Product...
Recurrent Neural Network Based Narrowband Channel Prediction (2006)
Liu, W., Yang, L-L., Hanzo, L.
In this contribution, the application of fully connected recurrent neural networks (FCRNNs) is investigated in the context of narrowband channel prediction. Three different algorithms, namely the...
Ahmed, S., Yang, L-L., Hanzo, L.
Abstract—In this contribution, we propose two successive interference cancellation (SIC) schemes for a fast frequency hopping (FFH) multiple access (MA) system using M-ary frequency shift keying...
Initial code acquisition schemes designed for the multiple transmit/receive antenna aided Multi-Carrier (MC)-DS-CDMA downlink are analysed, when communicating over uncorrelated Rayleigh channels. The...
In this contribution, multiuser decorrelating based frequency-domain channel estimation and long range channel prediction techniques are proposed for a generalized Multicarrier DS-CDMA (MC DS-CDMA)...
Interference cancellation assisted lattice-reduction aided detection for MIMO systems (2006)
Lee, K.C., Chun, J., Hanzo, L.
In this paper, we proposed and investigated the optimal successive interference cancellation (SIC) strategy designed for latticereduction aided multiple-input multiple-output (MIMO) detectors. For...
El-Hajjar, M., Alamri, O., Hanzo, L.
This paper presents a novel Differentially encoded Space-Time Spreading (DSTS) scheme using four transmit antennas that can be readily combined with PSK, QAM, as well as Sphere Packing (SP)...
Zhang, J.M, Yang, L-L., Liu, X., Hanzo, L.
In this contribution, the Bit Error Rate (BER) performance of OFDM systems using coherent demodulation over time-variant flat Nakagami-m fading channels is analyzed. In a rapidly fading environment...
Exact BER Calculation of Asynchronous DS-CDMA Systems Communicating over Hoyt Channels (2006)
An asynchronous binary DS-CDMA system using random spreading sequences is considered in flat Hoyt fading channels. A new closed-form expression is derived for the conditional characteristic function...
Symmetric Radial Basis Function Network Equaliser (2006)
Chen, S., Wolfgang, A., Benedetto, S., Dubamet, P., Hanzo, L.
The paper investigates nonlinear equalisation using a novel symmetric radial basis function (RBF) network. By explicitly exploiting the inherently symmetric structure of the optimal Bayesian...
Tee, R.Y.S., Alamri, O., Hanzo, L.
A new multilevel coding (MLC) scheme invoking sphere packing (SP) modulation is proposed, where the SP arrangement is jointly designed with a space time block code (STBC) for the sake of attaining an...
Subspace-based blind and group-blind space-time multiuser detection is invoked for a smart antenna aided generalized MC DS-CDMA system communicating over a dispersive Space-Time (ST) Rayleigh fading...
Reduced-Complexity Maximum-Likelihood Detection in Downlink SDMA Systems (2006)
Akhtman, J., Wei, C.Y., Hanzo, L.
The literature of up-link SDMA systems is rich, but at the time of writing there is a paucity of information on the employment of SDMA techniques in the down-link. Hence, in this paper a Space...
Combined Serially Concatenated Codes and MMSE Equalization: an EXIT Chart Aided Perspective (2006)
Wang, J., Ng, S.X., Yang, L-L., Hanzo, L.
Iterative Minimum Mean Square Error (MMSE) equalization and channel decoding is appealing, since it exhibits a lower complexity than maximum a posteriori (MAP) turbo equalization. However, the MMSE...
On the Design of Turbo Trellis Coded Modulation schemes using Symbol-based EXIT Charts (2006)
Ng, S. X., Kliewer, J., Alamri, O., Hanzo, L.
In this paper we design bandwidth efficient parallel-concatenated Turbo Trellis Coded Modulation (TTCM) schemes for communicating over AWGN and uncorrelated Rayleigh fading channels. The convergence...
Accurate BER Analysis of Asynchronous DS-CDMA Systems in Ricean Channels (2006)
The accurate Bit Error Rate (BER) calculation of an asynchronous Ricean-faded DS-CDMA system using random spreading sequences and BPSK modulation is studied in this paper. A new closed-form...
An Optimized-Hierarchy-Aided Maximum Likelihood Detector for MIMO-OFDM (2006)
In this paper we propose a novel low-complexity Maximum Likelihood (ML) space-time detection method, which can be regarded as an advanced extension of the Complex Sphere Decoder (CSD). We demonstrate...
Single-User Performance of Uplink DS-CDMA using Relay-Assisted Diversity (2006)
In a wireless system with distributed mobile users, several mobile users may cooperate with each other in order to achieve the transmit diversity. In this contribution we investigate the single-user...
Abstract—Differential space-time modulation (DSTM) schemes were proposed for detection without any knowledge of the Channel State Information (CSI), which is an attractive feature in the presence...
Interference-Mitigating Waveform Design for Next-Generation Wireless Systems (2006)
A brief historical perspective of the evolution of waveform designs employed in consecutive generations of wireless communications systems is provided, highlighting the range of often conflicting...
Near-capacity three-stage MMSE turbo equalization using irregular convolutional codes (2006)
Wang, J., Ng, S.X., Wolfgang, A., Yang, L.L., Chen, S., Hanzo, L.
On the Computation of EXIT Characteristics for Symbol-Based Iterative Decoding (2006)
Kliewer, J, Ng, S. X., Hanzo, L.
In this paper we propose an efficient method for computing index-based extrinsic information transfer (EXIT) charts, which are useful for estimating the convergence properties of non-binary iterative...
Tee, R. Y. S., Ng, S. X., Hanzo, L.
A novel three-dimensional (3D) EXIT chart is developed for investigating the iterative behaviour of Multilevel Coding (MLC) invoking Multistage Decoding (MSD). The extrinsic information transfer...
Alamri, O., Ng, S. X., Guo, F., Hanzo, L.
In this contribution, we propose a purely symbolbased LDPC-coded scheme based on a Space-Time Block Coding (STBC) signal construction method that combines orthogonal design with sphere packing,...
Multi-user OFDM employing genetic algorithm aided minimum bit error rate multi-user detection (2006)
Mellin Transform Based Performance Analysis of Fast Frequency Hopping Using Product Combining (2006)
Symmetric radial basis function network equaliser (2006)
Chen, S., Wolfgang, A., Benedetto, S., Dubamet, P., Hanzo, L.
Noise Correlation-Aided Iterative Decoding for Magnetic Recording Channels (2006)
Vanichchanunt, P, Woradit, K, Nakpeerayuth, S, Wuttisittikulkij, L, Hanzo, L
Iterative Equalization and Source Decoding for Vector Quantized Sources (2006)
Wang, J., Maunder, R. G., Hanzo, L.
In this contribution an iterative (turbo) channel equalization and source decoding scheme is considered. In our investigations the source is modelled as a Gaussian-Markov source, which is compressed...
Ng, S. X., Chung, J. Y., Hanzo, L.
Most multimedia source signals are capable of tolerating lossy, rather than lossless delivery to the human eye, ear and other human sensors. The corresponding lossy and preferably low-delay...
Ng, S. X., Chung, J. Y., Hanzo, L.
Most multimedia source signals are capable of tolerating lossy, rather than lossless delivery to the human eye, ear and other human sensors. The corresponding lossy and preferably low-delay...
Ng, S. X., Chung, J. Y., Hanzo, L.
Most multimedia source signals are capable of tolerating lossy, rather than lossless delivery to the human eye, ear and other human sensors. The corresponding lossy and preferably low-delay...
Adaptive minimum bit error rate beamforming assisted receiver for QPSK wireless communication (2005)
Adaptive Minimum Bit Error Rate Beamforming Assisted Receiver for QPSK Wireless Communication (2005)
Chen, S., Hanzo, L., Ahmad, N.N., Wolfgang, A.
This paper considers interference limited communication systems where the desired user and interfering users are symbol-synchronized. A novel adaptive beamforming technique is proposed for quadrature...
Adaptive minimum bit error rate beamforming assisted receiver for QPSK wireless communication (2005)
Maunder, R. G., Kliewer, J., Ng, S. X., Wang, J., Yang, L-L., Hanzo, L.
We propose a Vector-Quantized (VQ) video codec that induces deliberately-introduced code constraints. The complete set of these code constraints are unambiguously described by a novel block-based...
Maunder, R. G., Kliewer, J., Ng, S. X., Wang, J., Hanzo, L.
We propose a Vector-Quantized (VQ) video codec that induces deliberately-introduced code constraints. The complete set of these code constraints are unambiguously described by a novel block-based...
Alias, M.Y., Chen, S., Hanzo, L.
The family of minimum bit error rate (MBER) multiuser detectors (MUD) is capable of outperforming the classic minimum mean-squared error (MMSE) MUD in terms of the achievable bit-error rate (BER)...
The number of transmit antennas that can be employed in the context of least-squares (LS) channel estimation contrived for orthogonal frequency division multiplexing (OFDM) systems employing multiple...
Abstract—In multicarrier code-division multiple-access (MCCDMA), the total system bandwidth is divided into a number of subbands, where each subband may use direct-sequence (DS) spreading and each...
It is demonstrated that loosely synchronised (LS) spreading codes exhibit a so-called interference-free window, where both the autocorrelation and cross-correlation of the codes become zero....
Chen, S., Samingan, A.K., Hanzo, L.
Adaptive training of neural networks is typically done using some stochastic gradient algorithm that tries to minimize the mean square error (MSE). For many applications, such as channel equalization...
Chen, S., Samingan, A.K., Hanzo, L.
Adaptive training of neural networks is typically done using some stochastic gradient algorithm that tries to minimize the mean square error (MSE). For many applications, such as channel equalization...
Coding against Spreading Gain Optimization of Nonbinary BCH Coded CDMA System (2005)
The joint analytical optimisation of the spreading gain and coding gain of nonbinary BCH coded CDMA communication systems is considered in both single-cell and multi-cell scenarios. Furthermore, two...
Chen, S., Samingan, A.K., Hanzo, L.
Adaptive training of neural networks is typically done using some stochastic gradient algorithm that tries to minimize the mean square error (MSE). For many applications, such as channel equalization...
In this contribution multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) using space–time spreading (STS)-assisted transmit diversity is investigated in the context of broadband...
In this contribution, the performance of wideband code-division multiple-access (W-CDMA) systems using space-timespreading-(STS-) based transmit diversity is investigated, when frequency-selective...
Genetic Algorithm Aided Timeslot Scheduling for UTRA TDD CDMA Networks (2005)
It is demonstrated that genetic algorithms may be utilised for finding a suboptimum but highly beneficial uplink (UL) or downlink (DL) timeslot (TS) allocation for improving the achievable...
Adaptive minimum bit error rate beamforming (2005)
Chen, S., Ahmad, N.N., Hanzo, L.
An adaptive beamforming technique is proposed based on directly minimizing the bit error rate. It is demonstrated that this minimum bit error rate (MBER) approach utilizes the antenna array elements...
Adaptive Minimum Bit Error Rate Beamforming (2005)
Chen, S., Ahmad, N.N., Hanzo, L.
An adaptive beamforming technique is proposed based on directly minimizing the bit error rate. It is demonstrated that this minimum bit error rate (MBER) approach utilizes the antenna array elements...
Adaptive minimum bit error rate beamforming (2005)
Chen, S., Ahmad, N.N., Hanzo, L.
An adaptive beamforming technique is proposed based on directly minimizing the bit error rate. It is demonstrated that this minimum bit error rate (MBER) approach utilizes the antenna array elements...
Interference-Free Braodband Single- and Multi-Carrier DS-CDMA (2005)
Hua, W., Yang, L-L., Hanzo, L.
The choice of the direct sequence spreading code in DS-CDMA predetermines the properties of the system. This contribution demonstrates that the family of codes exhibiting an interference-free window...
A Generalised Sidelobe Canceller Employing Two-Dimensional Frequency Invariant Filters (2005)
Based on the generalised sidelobe canceller (GSC), in this paper we propose a novel broadband adaptive beamformer, where the quiescent vector and blocking matrix are replaced by a series of...
The achievable performance of decision-directed channe estimation (DDCE) is analysed in the context of both OFDM and MC CDMA systems. Two different estimation methods suitable for both OFDM and...
Differential acquisition of m-sequences using recursive soft sequential estimation (2005)
In this contribution a novel sequential estimation method is proposed for the acquisition of $m$-sequences. This sequential estimation method exploits the principle of iterative soft-in-soft-out...
Othman, N.S., Ng, S.X., Hanzo, L.
A jointly optimised turbo transceiver capable of providing unequal error protection is proposed for employment in an MPEG-4 aided audio transceiver. The transceiver advocated consists of Space-Time...
Othman, N. S., Ng, S. X., Hanzo, L.
The MPEG-4 TwinVQ audio codec and the AMR-WB speech codec are investigated in the context of a jointly optimised turbo transceiver capable of providing unequal error protection. The transceiver...
Wang, J., Othman, N.S., Kliewer, J., Yang, L-L., Hanzo, L.
Recently, irregular convoluational codes have shown excellent decoding convergence [1,3]. Since the composing constituent codes have different coding rates, thus the irregular codes exhibit unequal...
Reliability Ratio Based Weighted Bit-Flipping Decoding for LDPC Codes (2005)
In this contribution, a novel reliability-ratio based weighted bit-flipping(RRWBF) algorithm is proposed for decoding Low Density Parity Check (LDPC) codes. The RRWBF algorithm proposed is...
Wolfgang, A., Chen, S., Hanzo, L.
A novel Bayesian Decision-Feedback aided turbo Space-Time Equalizer (DF-STE) combined with a Parallel Interference Cancellation (PIC) scheme and designed for multiple antenna assisted receivers is...
In this contribution a generalized MC DS-CDMA system invoking smart antennas for improving the achievable performance in the downlink of the system is studied, which is capable of minimizing the...
Slow Subcarrier-Hopped Space Division Mulitple Access OFDM Systems (2005)
Jiang, M., Ng, S. X., Hanzo, L.
Recently Space Division Multiple Access (SDMA) assisted Multi-Input-Multi-Output (MIMO) OFDM systems invoking Multi-User Detection (MUD) techniques have attracted substantial research interests,...
Space-Time Equalisation Assisted Minimum Bit-Error Ratio Multiuser Detection for SDMA Systems (2005)
Differential Acquisition of m-Sequences using Recursive Soft Sequential Estimation (2005)
In this contribution a novel sequential estimation method is proposed for the acquisition of $m$-sequences. This sequential estimation method exploits the principle of iterative soft-in-soft-out...
Differential acquisition of m-sequences using recursive soft sequential estimation (2005)
In this contribution a novel sequential estimation method is proposed for the acquisition of $m$-sequences. This sequential estimation method exploits the principle of iterative soft-in-soft-out...
A Generalised Sidelobe Canceller Employing Two-Dimensional Frequency Invariant Filters (2005)
Based on the generalised sidelobe canceller (GSC), in this paper we propose a novel broadband adaptive beamformer, where the quiescent vector and blocking matrix are replaced by a series of...
Generic Reduced-Complexity MMSE Channel Estimation for OFDM and MC-CDMA (2005)
The performance of a decision-directed channel estimation scheme is analyzed in the context of both OFDM and MC-CDMA systems. A difficulty associated with the employment of the Least Squares (LS)...
The achievable performance of decision-directed channe estimation (DDCE) is analysed in the context of both OFDM and MC CDMA systems. Two different estimation methods suitable for both OFDM and...
Othman, N.S., Ng, S.X., Hanzo, L.
A jointly optimised turbo transceiver capable of providing unequal error protection is proposed for employment in an MPEG-4 aided audio transceiver. The transceiver advocated consists of Space-Time...
Othman, N. S., Ng, S. X., Hanzo, L.
The MPEG-4 TwinVQ audio codec and the AMR-WB speech codec are investigated in the context of a jointly optimised turbo transceiver capable of providing unequal error protection. The transceiver...
Wang, J., Othman, N.S., Kliewer, J., Yang, L-L., Hanzo, L.
Abstract—since the different bits of multimedia information, such as speech and video, have different error sensitivity, efficient unequalprotection channel coding schemes have to be used to ensure...
Radial Basis Function Aided Space-Time Equalization in Dispersive Fading Uplink Environments (2005)
Wolfgang, A., Chen, S., Hanzo, L.
A novel Radial Basis Function Network (RBFN) assisted Decision-Feedback aided Space-Time Equalizer (DF-STE) designed for receivers employing multiple antennas is proposed. The Bit Error Rate (BER)...
Ng, S.X., Yeap, B.L., Hanzo, L.
A full-rate, full-diversity Adaptive Space Time Block Coding (ASTBC) scheme based on Singular Value Decomposition (SVD) is proposed for transmission over Rayleigh fading channels. The ASTBC-SVD...
On the Uplink Performance of Asynchronous LAS-CDMA (2005)
In this paper closed-form formulae are derived for characterizing the BER performance of Large Area Synchronous CDMA (LAS-CDMA) as a function of both the number of resolvable paths Lp and the maximum...
Genetically Enhanced Performance of a UTRA-like Time-Division Duplex CDMA Network (2005)
In this contribution a Dynamic Channel Allocation (DCA) algorithm is developed, which minimizes the amount of Multi-User Interference (MUI) experienced at the Base Stations (BSs) by employing Genetic...
Wideband Channel Estimation and Prediction in Single-Carrier Wireless Systems (2005)
Liu, W., Yang, L-L., Hanzo, L.
Abstract—In this contribution wideband channel estimation and prediction designed for single-carrier wideband wireless communications systems are investigated. Specifically, the single-carrier...
Iterative Channel Equlization, Channel Decoding and Source Decoding (2005)
Wang, J., Yang, L-L., Hanzo, L.
The performance of soft source decoding is evaluated over dispersive AWGN channels. By employing source codes having error-correcting capabilities, such as Reversible Variable-Length Codes (RVLCs)...
Reliability Ratio Based Weighted Bit-Flipping Decoding for LDPC Codes (2005)
In this contribution, a novel reliability-ratio based weighted bit-flipping(RRWBF) algorithm is proposed for decoding Low Density Parity Check (LDPC) codes. The RRWBF algorithm proposed is...
Iteratively Decoded Variable Length Space-Time Coded Modulation (2005)
An Iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) scheme capable of simultaneously providing both coding and iteration gain as well as multiplexing and diversity gain is...
The Concept of Space-Time Spreading (STS) assisted, Adaptive Quadrature Amplitude Modulation (AQAM) aidedMC DS-CDMAis introduced. The AQAMmode-switching thresholds are determined using an on-line...
Wolfgang, A., Chen, S., Hanzo, L.
A novel Bayesian Decision-Feedback aided turbo Space-Time Equalizer (DF-STE) combined with a Parallel Interference Cancellation (PIC) scheme and designed for multiple antenna assisted receivers is...
Variable Length Space Time Coded Modulation (2005)
Ng, S.X., Wang, J., Yang, L-L., Hanzo, L.
A Variable Length Space Time Coded Modulation (VL-STCM) scheme capable of simultaneously providing coding, multiplexing and diversity gains is proposed. The scheme advocated achieves its best...
Erasure Insertion in RS-Coded SFH MFSK Subjected to Tone Jamming and Rayleigh Fading (2005)
Ahmed, S., Yang, L-L., Hanzo, L.
The achievable performance of Reed Solomon (RS) coded slow frequency hopping (SFH) assisted M-ary frequency shift keying (MFSK) using various erasure insertion (EI) schemes is investigated, when...
Effects of Rate Adaption on the Throughput of Random Ad Hoc Networks (2005)
The capacity of wireless ad hoc networks has been studied in an excellent treatise by Gupta and Kumar [1], assuming a fixed transmission rate. By contrast, in this treatise we investigate the...
In this contribution a generalized MC DS-CDMA system invoking smart antennas for improving the achievable performance in the downlink of the system is studied, which is capable of minimizing the...
Slow Subcarrier-Hopped Space Division Mulitple Access OFDM Systems (2005)
Jiang, M., Ng, S. X., Hanzo, L.
Recently Space Division Multiple Access (SDMA) assisted Multi-Input-Multi-Output (MIMO) OFDM systems invoking Multi-User Detection (MUD) techniques have attracted substantial research interests,...
In this contribution we investigate the serial search based initial code acquisition performance of DSCDMA employing multiple transmit antennas both with and without Post-Detection Integration (PDI),...
Alamri, O.R., Guo, F., Jiang, M., Hanzo, L.
A recently proposed space-time signal construction method that combines orthogonal design with sphere packing, referred to here as (STBC-SP), has shown useful performance improvements over...
In this paper we investigate the achievable capacity of a UTRA-like Time Division Duplex (TDD) Code Division Multiple Access (CDMA) system employing Loosely Synchronized (LS) spreading codes. The...
In this contribution a generalized MC DS-CDMA system invoking smart antennas for improving the achievable performance in the downlink of the system is studied, which is capable of minimizing the...
Ahmed, S., Yang, L-L., Hanzo, L.
The achievable performance of various diversity combining schemes used in fast frequency hopping (FFH) aided M-ary frequency shift keying (MFSK) systems operating in a multiple access scenario...
The family of operational CDMA systems is interference-limited owing to the Inter Symbol Interference (ISI) and the Multiple Access Interference (MAI) encountered. They are interference-limited,...
Chen, S., Yang, X.C., Hanzo, L.
A blind adaptive scheme is proposed for joint maximum likelihood (ML) channel estimation and data detection of single-input multiple-output (SIMO) systems. The joint ML optimization of the channel...
Iterative Multi-User Detection for OFDM using Biased Mutation Assited Genetic Algorithms (2005)
Space Division Multiple Access (SDMA) aided Orthogonal Frequency Division Multiplexing (OFDM) systems assisted by efficient Multi-User Detection (MUD) techniques have recently attracted intensive...
LAS-CDMA using Various Time Domain Chip-Waveforms (2005)
LAS CDMA exhibits a significantly better performance than that of classic random code based DS-CDMA, when operating in a quasi-synchronous scenario. Classic frequency-domain raised cosine Nyquist...
Slow Frequency Hopping Assisted MC DS-CDMA using Large Area Synchronised Spreading Sequences (2005)
The family of Multi-Carrier Direct-Sequence CDMA (MC DS- CDMA) systems exhibits numerous attractive properties, which render them attractive candidates for next-generation wireless communications. We...
Space-Time Equalisation Assisted Minimum Bit-Error Ratio Multiuser Detection for SDMA Systems (2005)
Chen, S., Yang, X.C., Hanzo, L.
This contribution investigates a space-time equalisation assisted multiuser detection scheme designed for multiple receiver antenna aided space division multiple access (SDMA) systems. A novel...
A Robust Nonlinear Beamforming Assisted Receiver for BPSK Signalling (2005)
Chen, S., Wolfgang, A., Hanzo, L.
Nonlinear beamforming designed for wireless communications is investigated. We derive the optimal nonlinear beamforming assisted receiver designed for binary phase shift keying (BPSK) signalling. It...
A generalized sidelobe canceller employing two-dimensional frequency Invariant filters (2005)
Based on the generalized sidelobe canceller (GSC), we propose a novel adaptive broadband beamformer, where the quiescent vector and blocking matrix are replaced by a series of two-dimensional...
A Generalised Sidelobe Canceller Employing Two-Dimensional Frequency Invariant Filters (2005)
Based on the generalised sidelobe canceller (GSC), in this paper we propose a novel broadband adaptive beamformer, where the quiescent vector and blocking matrix are replaced by a series of...
The achievable performance of decision-directed channe estimation (DDCE) is analysed in the context of both OFDM and MC CDMA systems. Two different estimation methods suitable for both OFDM and...
Othman, N.S., Ng, S.X., Hanzo, L.
A jointly optimised turbo transceiver capable of providing unequal error protection is proposed for employment in an MPEG-4 aided audio transceiver. The transceiver advocated consists of Space-Time...
Othman, N. S., Ng, S. X., Hanzo, L.
The MPEG-4 TwinVQ audio codec and the AMR-WB speech codec are investigated in the context of a jointly optimised turbo transceiver capable of providing unequal error protection. The transceiver...
Wang, J., Othman, N.S., Kliewer, J., Yang, L-L., Hanzo, L.
Recently, irregular convoluational codes have shown excellent decoding convergence [1,3]. Since the composing constituent codes have different coding rates, thus the irregular codes exhibit unequal...
Reliability Ratio Based Weighted Bit-Flipping Decoding for LDPC Codes (2005)
In this contribution, a novel reliability-ratio based weighted bit-flipping(RRWBF) algorithm is proposed for decoding Low Density Parity Check (LDPC) codes. The RRWBF algorithm proposed is...
Wolfgang, A., Chen, S., Hanzo, L.
A novel Bayesian Decision-Feedback aided turbo Space-Time Equalizer (DF-STE) combined with a Parallel Interference Cancellation (PIC) scheme and designed for multiple antenna assisted receivers is...
In this contribution a generalized MC DS-CDMA system invoking smart antennas for improving the achievable performance in the downlink of the system is studied, which is capable of minimizing the...
Slow Subcarrier-Hopped Space Division Mulitple Access OFDM Systems (2005)
Jiang, M., Ng, S. X., Hanzo, L.
Recently Space Division Multiple Access (SDMA) assisted Multi-Input-Multi-Output (MIMO) OFDM systems invoking Multi-User Detection (MUD) techniques have attracted substantial research interests,...
Space-Time Equalisation Assisted Minimum Bit-Error Ratio Multiuser Detection for SDMA Systems (2005)
A generalized sidelobe canceller employing two-dimensional frequency Invariant filters (2005)
Based on the generalized sidelobe canceller (GSC), we propose a novel adaptive broadband beamformer, where the quiescent vector and blocking matrix are replaced by a series of two-dimensional...
A generalized sidelobe canceller employing two-dimensional frequency Invariant filters (2005)
Based on the generalized sidelobe canceller (GSC), we propose a novel adaptive broadband beamformer, where the quiescent vector and blocking matrix are replaced by a series of two-dimensional...
assisted receiver for QPSK (2005)
S. Chen, L. Hanzo, N. N. Ahmad, A. Wolfgang
minimum bit error rate beamforming
Adaptive minimum bit error rate beamforming (2005)
S. Chen, N. N. Ahmad, L. Hanzo
Indexing terms: Smart antenna, beamforming, minimum mean square error, minimum bit error rate A novel beamforming technique is proposed based on the minimum bit error rate (MBER) criterion. It is...
The effect of the maximum asynchronous arrival time difference (AATD) of the delayed multipath components on the uplink performance of synchronous DS-CDMA systems is investigated, when communicating...
Ng, S. X., Yee, M. S., Hanzo, L.
In this contribution a range of Coded Modulation (CM) assisted Radial Basis Function (RBF) based Turbo Equalisation (TEQ) schemes are investigated when communicating over dispersive Rayleigh fading...
Recital on Multicarrier Communications: Space-Time Coded versus Adaptive OFDM/MC-CDMA (2004)
Hanzo, L., Yang, L-L, Munster, M, Choi, B.J.
This overview portrays the evolution of multi-carrier systems from their conception and demonstrates that they are capable of supporting the requirements of future wireless systems of the next...
Wang, J., Yang, L-L., Hanzo, L.
We propose a generic algorithm for the construction of efficient reversible variable-length codes (RVLCs) and variablelength error-correcting (VLEC) codes, which optimizes the codeword length...
Liew, T.H., Wong, C.H., Hanzo, L.
Decision feedback equalizer (DFE)-aided turbocoded wideband adaptive quadrature amplitude modulation (AQAM) is proposed, which is capable of combating the temporal channel quality variation of fading...
Ng, S. X., Yee, M. S., Hanzo, L.
In this contribution a range of Coded Modulation (CM) assisted Radial Basis Function (RBF) based Turbo Equalisation (TEQ) schemes are investigated when communicating over dispersive Rayleigh fading...
Ng, S. X., Yee, M. S., Hanzo, L.
In this contribution a range of Coded Modulation (CM) assisted Radial Basis Function (RBF) based Turbo Equalisation (TEQ) schemes are investigated when communicating over dispersive Rayleigh fading...
Reliability-Ratio Based Weighted Bit-Flipping Decoding for Low-Density Parity Check Codes (2004)
A novel reliability ratio based weighted bit-flipping decoding scheme is proposed for low-density parity-check codes. A coding gain of 1 dB is achieved in comparison to the weighted bit-flipping...
Yeap, B. L., Maunder, R. G., Ng, S. X., Hanzo, L.
In this treatise we characterise the achievable performance of a proprietary video transmission system, which employs a Constant Bit Rate (CBR) video codec that is concatenated with one of of three...
Yeap, B. L., Maunder, R. G., Ng, S. X., Hanzo, L.
In this treatise we characterise the achievable performance of a proprietary video transmission system, which employs a Constant Bit Rate (CBR) video codec that is concatenated with one of of three...
Ng, S. X., Maunder, R. G., Wang, J., Hanzo, L.
Joint video-coding, channel-coding and modulation schemes based on a Constant Bit Rate (CBR) video codec, Variable Length Codes (VLCs) as well as Trellis Coded Modulation (TCM) and Turbo TCM (TTCM)...
Ng, S. X., Maunder, R. G., Wang, J., Hanzo, L.
Joint video-coding, channel-coding and modulation schemes based on a Constant Bit Rate (CBR) video codec, Variable Length Codes (VLCs) as well as Trellis Coded Modulation (TCM) and Turbo TCM (TTCM)...
Genetic-Algorithm-Assisted Multiuser Detection in Asynchronous CDMA Communications (2004)
Abstract—In an asynchronous direct-sequence code-division multiple-access, a specific bit of the reference user is interfered by two asynchronously arriving surrounding bits of all the other users...
Wolfgang, A., Chen, S., Hanzo, L.
A novel radial basis function network assisted decision-feedback aided space-time equaliser designed for receivers employing multiple antennas is presented. The proposed receiver structure...
Nonlinear multiantenna detection methods (2004)
Chen, S., Hanzo, L., Wolfgang, A.
The paper investigates a nonlinear detection technique designed for multiple-antenna assisted receivers employed in space-division multiple-access systems. We derive the optimal solution of the...
Nonlinear Multi-Antenna Detection Methods (2004)
Chen, S., Hanzo, L., Wolfgang, A.
The paper investigates a nonlinear detection technique designed for multiple-antenna assisted receivers employed in space-division multiple-access systems. We derive the optimal solution of the...
Nonlinear multiantenna detection methods (2004)
Chen, S., Hanzo, L., Wolfgang, A.
The paper investigates a nonlinear detection technique designed for multiple-antenna assisted receivers employed in space-division multiple-access systems. We derive the optimal solution of the...
Chen, S., Hanzo, L., Mulgrew, B.
The design of decision feedback equalizers (DFEs) is typically based on the minimum mean square error (MMSE) principle, as this leads to effective adaptive implementation in the form of the least...
Chen, S., Hanzo, L., Mulgrew, B.
The design of decision feedback equalizers (DFEs) is typically based on the minimum mean square error (MMSE) principle, as this leads to effective adaptive implementation in the form of the least...
Reduced Complexity I/Q Turbo Detection for Space-Time Trellis-Coded Systems (2004)
A reduced-complexity turbo-detection scheme, referred to here as the R-TD arrangement, is proposed for employment in space-time trellis-coded (STTC) systems using the inphase/quadrature-phase (I/Q)...
Chen, S., Hanzo, L., Mulgrew, B.
The design of decision feedback equalizers (DFEs) is typically based on the minimum mean square error (MMSE) principle, as this leads to effective adaptive implementation in the form of the least...
Chen, S., Hanzo, L., Wolfgang, A.
This letter shows that the wireless communication system capacity is greatly enhanced by employing nonlinear beamforming and the optimal Bayesian beamformer outperforms the standard linear beamformer...
Chen, S., Hanzo, L., Wolfgang, A.
This letter shows that the wireless communication system capacity is greatly enhanced by employing nonlinear beamforming and the optimal Bayesian beamformer outperforms the standard linear beamformer...
Genetic Algorithm Assisted Minimum Bit Error Rate Beamforming (2004)
Wolfgang, A., Ahmad, N.N., Chen, S., Hanzo, L.
In this paper a novel Genetic Algorithm (GA) assisted Minimum Bit Error Rate Rate (MBER) beamforming technique is introduced. The performance of the proposed GAS is characterised by the Probability...
Chen, S., Hanzo, L., Wolfgang, A.
This letter shows that the wireless communication system capacity is greatly enhanced by employing nonlinear beamforming and the optimal Bayesian beamformer outperforms the standard linear beamformer...
Genetic Algorithm Assisted Error Probability Optimisation for Beamforming (2004)
Wolfgang, A., Ahmad, N.N., Chen, S., Hanzo, L.
A novel Genetic Algorithm (GA) assisted direct error probability optimisation technique is proposed for adaptive beamforming, which reduces the achievable error probability by nearly two orders of...
Genetic Algorithm Assisted Error Probability Optimisation for Beamforming (2004)
Wolfgang, A., Ahmad, N.N., Chen, S., Hanzo, L.
A novel Genetic Algorithm (GA) assisted direct error probability optimisation technique is proposed for adaptive beamforming, which reduces the achievable error probability by nearly two orders of...
A Subband-Selective Broadband GSC with Cosine-Modulated Blocking Matrix (2004)
In this paper, a novel subband-selective generalized sidelobe canceller (GSC) for partially adaptive broadband beamforming is proposed. The columns of the blocking matrix are derived from a prototype...
A Subband-Selective Broadband GSC with Cosine-Modulated Blocking Matrix (2004)
In this paper, a novel subband-selective generalized sidelobe canceller (GSC) for partially adaptive broadband beamforming is proposed. The columns of the blocking matrix are derived from a prototype...