Feifei Gao

Differential modulation for two-way wireless communications: a perspective of differential network coding at the physical layer (2009)

Cui, Tao, Gao, Feifei, Tellambura, Chintha

This work considers two-way relay channels (TWRC), where two terminals transmit simultaneously to each other with the help of a relay node. For single antenna systems, we propose several new...

Design of Learning Based MIMO Cognitive Radio Systems (2009)

Gao, Feifei, Zhang, Rui, Liang, Ying-Chang, Wang, Xiaodong

This paper addresses the design issues of the multi-antenna-based cognitive radio (CR) system that is able to operate concurrently with the licensed primary radio (PR) system. We propose a practical...

Distributed space-time coding for two-way wireless relay networks (2009)

Cui, Tao, Gao, Feifei, Ho, Tracey, Nallanathan, Arumugam

In this paper, we consider distributed space-time coding for two-way wireless relay networks, where communication between two terminals is assisted by relay nodes. Relaying protocols using two,...

Optimal Training Design for Channel Estimation in Decode-and-Forward Relay Networks With Individual and Total Power Constraints (2008)

Gao, Feifei, Cui, Tao, Nallanathan, Arumugam

In this paper, we study the channel estimation and the optimal training design for relay networks that operate under the decode-and-forward (DF) strategy with the knowledge of the interference...

Maximum likelihood detection for differential unitary space-time modulation with carrier frequency offset (2008)

Gao, Feifei, Cui, Tao, Nallanathan, Arumugam, Tellambura, Chinthananda

Can conventional differential unitary space time modulation (DUSTM) be applied when there is an unknown carrier frequency offset (CFO)? This paper answers this question affirmatively and derives the...

Cognitive Beamforming Made Practical: Effective Interference Channel and Learning-Throughput Tradeoff (2008)

Zhang, Rui, Gao, Feifei, Liang, Ying-Chang

This paper studies the transmission strategy for cognitive radio (CR) under spectrum sharing with primary radio (PR). It is assumed that the CR transmitter is equipped with multi-antennas, whereby...

Maximum likelihood based estimation of frequency and phase offset in DCT OFDM systems under non-circular transmissions: algorithms, analysis and comparisons (2008)

Gao, Feifei, Cui, Tao, Nallanathan, A., Tellambura, C.

Recently, the advantages of the discrete cosine transform (DCT) based orthogonal frequency-division multiplexing (OFDM) have come to the light. We thus consider DCT- OFDM with non-circular...

On channel estimation and optimal training design for amplify and forward relay networks (2008)

Gao, Feifei, Cui, Tao, Nallanathan, Arumugam

Scattered Pilots and Virtual Carriers Based Frequency Offset Tracking for OFDM Systems: Algorithms, Identifiability, and Performance Analysis (2008)

Gao, Feifei, Cui, Tao, Nallanathan, Arumugam

In this paper, we propose a novel carrier frequency offset (CFO) tracking algorithm for orthogonal frequency division multiplexing (OFDM) systems by exploiting scattered pilot carriers and virtual...

A generalized ESPRIT direction-of-arrival estimator / (2004)

Gao, Feifei.

Thesis (M.A.Sc.)--McMaster University, 2004.