QoS Management for Wireless Sensor Networks with a Mobile Sink (2009)
Rob Hoes, Twan Basten, Wai-leong Yeow, Chen-khong Tham, Marc Geilen, Henk Corporaal
Abstract. The problem of configuration of Wireless Sensor Networks is an interesting challenge. The objective is to find the settings, for each sensor node, that optimise certain task-level QoS...
Sin-lam Tan, Chen-khong Tham, Lek-heng Ngoh, Sin-lam Tan, Sin-lam Tan, Chen-khong Tham, ...
This paper describes a system for creating virtual connections based on QoS requirements and providing basic QoS routing functionality. It effectively bridges the gap between complex protocols like...
Abstract. This paper studies the design and performance of the Probabilistic Priority (PP) packet scheduling algorithm to schedule packets. Unlike an earlier design that uses fractional arithmetic...
Integrated Quality of Service and Network Management (2008)
This paper presents the design and implementation of an application that provides a platform to do both networklevel and Quality of Service (QoS) monitoring. It aims to remotely monitor critical...
SensorGrid: Integrating Sensor Networks and Grid Computing (2008)
Chen-khong Tham, Rajkumar Buyya
this article is as follows. In Section 2, we describe a simple way to realize sensor-grid computing which we call the centralized approach. We then point out some of its weaknesses and describe a...
On Incorporating Differentiated Network Service into GridSim (2008)
Anthony Sulistio, Gokull Poduval, Rajkumar Buyya, Chen-Khong Tham
Grid computing technologies are increasingly being used to aggregate computing resources that are geographically distributed across different locations. Commercial networks are being used to connect...
A Low-Overhead Cooperative Retransmission Scheme for IR-UWB Networks (2008)
Ghasem Naddafzadeh Shirazi, Peng-Yong Kong, Chen-Khong Tham
The UWB unique properties such as fine ranging and immunity to small scale fading are utilized in order to exploit the multiuser diversity in UWB networks. The optimal cooperation strategies in the...
A Low-Overhead Cooperative Retransmission Scheme for IR-UWB Networks (2008)
Ghasem Naddafzadeh Shirazi, Peng-Yong Kong, Chen-Khong Tham
The UWB unique properties such as fine ranging and immunity to small scale fading are utilized in order to exploit the multiuser diversity in UWB networks. The optimal cooperation strategies in the...
Generalised Minimum Queuing Delay: An Adaptive Multi-rate Service Discipline for ATM Networks (2007)
Hoon-tong Ngin, Chen-khong Tham, Wee-seng Soh
Abstract- In this paper, we propose a generalised minimum queuing delay (GMQD) service discipline for high speed networks, mainly asynchronous transfer mode (ATM) networks. This proposed scheme is...
Abstract Loss differentiated multicast congestion control (2007)
A new layered multicast scheme known as loss differentiated multicast congestion control architecture is proposed to provide effective congestion control in heterogeneous multicast networks. It is...
Lihua Yuan, Chen-khong Tham, Akkihebbal L. An
Abstract. Resource reservation is a essential component in providing QoS guarantees to distributed multimedia applications that run over the internetwork. Early reservation systems, including both...
Layered Self-Identifiable and Scalable Video Codec for Delivery to Heterogeneous Receivers (2007)
Wei Feng, Ashraf A. Kassim, Chen-khong Tham
This paper describes the development of a layered structure of a multi-resolutional scalable video codec based on the Color Set Partitioning in Hierarchical Trees (CSPIHT) scheme. The new structure...
LAYERED CODING FOR A SCALABLE VIDEO DELIVERY SYSTEM (2007)
Chen-khong Tham, Yuming Jiang, Yung-sze Gan
This paper presents a color-resolution layered coding scheme for a scalable video delivery system which operates over heterogeneous networks and distributes real-time streaming video to diverse types...
Integrating Network QoS to Provide Dierentiated Service in a Web (2007)
Venkata R. Subramaniam, Chen-khong Tham
In this paper, we propose an Integrated Quality of Service(QoS) Manager (IQM) that determines and enforces the QoS given to HTTP requests that a web server receives. In order to determine the...
INTEGRATING WEB SERVER AND NETWORK QOS TO PROVIDE (2007)
Chen-khong Tham, Venkata R. Subramaniam
In this paper, we propose an Integrated Quality of Service (QoS) Manager (IQM) that determines and enforces the QoS given to HTTP requests that a web server receives. In order to determine the...
A Control-Theoretical Approach for Fair Share Computation in Core-Stateless Networks (2007)
Hoon-tong Ngin, Chen-khong Tham
Abstract. In this paper, we propose the use of a control theoretical approach for a fast and robust fair share computation for a class of fair queueing algorithms based on the Scalable Core...
Hoon-tong Ngin, Chen-khong Tham
2 A control-theoretical approach for achieving fair bandwidth 3 allocations in core-stateless networks
A QOS-BASED ROUTING ALGORITHM FOR PNNI ATM NETWORKS (2007)
Chen-khong Tham, Jianning Mai, Lawrence Wc Wong
Although the ATM Forum has proposed the Private Network-Network Interface (PNNI) Specification to facilitate routing in ATM networks, path selection or routing algorithms that guarantee a user’s...
Generalised Minimum Queuing Delay: An Adaptive Multi-rate Service Discipline for ATM Networks (2007)
Hoon-tong Ngin, Chen-khong Tham, Wee-seng Soh
Abstract- In this paper, we propose a generalised minimum queuing delay (GMQD) service discipline for high speed networks, mainly asynchronous transfer mode (ATM) networks. This proposed scheme is...
Yuming Jiang, Chen-khong Tham, Chi-chung Ko
Abstract—To detect possible quality of service (QoS) degradation and locate the cause of the degradation, end-to-end QoS monitoring is not sufficient. Instead, QoS distribution should be monitored,...
Yuming Jiang, Chen-khong Tham, Chi-chung Ko
In multimedia networks, performance management is required to ensure that the agreed quality of service (QoS) is sustained. To detect possible QoS degradation and locate the cause of the degradation,...
Communication Networks Delay Analysis of a Probabilistic Priority Discipline (2007)
Yuming Jiang, Chen-khong Tham, Chi-chung Ko
Abstract. In computer networks, the Strict Priority (SP) discipline is perhaps the most common and simplest method to schedule packets from different classes of applications, each with diverse...
SingAREN: The Singapore Advanced Research and Education Network (2007)
Lek-heng Ngoh, Manjeet Singh, Chen-khong Tham, Akkihebbal L. An
Singapore is the first country in the world to have a nationwide broadband network infrastructure deployed. What started as an experimental ATM testbed network in 1995 has now become a nationwide...
INTERNATIONAL JOURNAL OF NETWORK MANAGEMENT Int. J. Network Mgmt 2000; 10:75–90 (2007)
Chen-khong Tham, Yuming Jiang Ł, Chi-chung Ko
Monitoring QoS distribution in multimedia networks
Integration of Mobile IP and Multi-Protocol Label Switching (2007)
Zhong Ren, Chen-khong Tham, Chun-choong Foo, Chi-chung Ko
Abstract—Multi-Protocol Label Switching is a technology that combines the simplicity of IP routing with the high-speed switching of ATM. Mobile IP is a protocol that allows users to move around and...
QoS-based Connection Set-up in ATM Networks Sin-Lam (2007)
Chen-khong Tham, Lek-heng Ngoh
It is possible to set up virtual connections across multiple ATM switches using ATM Forum’s Private Network-Network Interface (PNNI). However, the PNNI protocol is a complex signalling protocol....
MINIMUM QUEUING DELAY: AN ADAPTIVE ALGORITHM FOR SCHEDULING IN A DYNAMIC JOB SHOP (2007)
Chen-khong Tham, Rui-an Lou, Hoon-tong Ngin
Abstract—The problem of scheduling on the job shop floor is widely encountered in the manufacturing industry. However, generating good job shop schedules in a reasonable time remains a challenging...
Copyright 2003 John Wiley Sons, Ltd. (2007)
International Journal Of, Sin-lam Tan, Chen-khong Tham, Lek-heng Ngoh
This paper describes a system for creating virtual connections based on QoS requirements and providing basic QoS routing functionality. It effectively bridges the gap between complex protocols like...
Analysing qos trade-offs in wireless sensor networks (2007)
Rob Hoes, Twan Basten, Chen-khong Tham, Marc Geilen, Henk Corporaal
Quality of Service (QoS) support for wireless sensor networks (WSN) is a fairly new topic that is gaining more and more interest. This paper introduces a method for configuring the nodes of a WSN...
Constructing a Grid Simulation with Differentiated Network Service Using GridSim (2005)
Anthony Sulistio, Gokul Poduval, Rajkumar Buyya, Chen-Khong Tham
Grid computing technologies are increasingly being used to aggregate computing resources that are geographically distributed across different locations. Commercial networks are being used to connect...
Adaptive provisioning of differentiated services networks based on reinforcement learning (2003)
Abstract—The issue of bandwidth provisioning for Per Hop Behavior (PHB) aggregates in Differentiated Services (DiffServ) networks has received a lot of attention from researchers. However, most...
Achieving Proportional Delay Differentiation Efficiently (2003)
Hoon-Tong Ngin, Chen-Khong Tham
In this paper, we focus on efficiently achieving Proportional Delay Differentiation (PDD), an instance of the Proportional Differentiation Model first proposed under the DiffServ framework [IEEE...
Congestion Adaptation and Layer Prioritization in a Multicast Scalable Video Delivery (2002)
Chen-khong Tham, Yung-sze Gan, Yuming Jiang
In the absence of a congestion adaptation scheme, a video client selects its desired video quality without knowing whether it can be supported under the current network traffic condition. It may be...
Abstract. The deployment of the Random Early Detection (RED) al-gorithm in multicast routers can improve the performance of layered multicast congestion control schemes. In this paper, a new layered...
Minimizing Transmission Costs through Adaptive Marking (2002)
Abstract. The issue of resource management in multi-domain Dierentiated Services (DiServ) networks has attracted a lot of attention from researchers who have proposed various provisioning, adaptive...
A probabilistic priority scheduling discipline for multi-service networks (2001)
Yuming Jiang, Chen-khong Tham, Chi-chung Ko
This paper proposes a novel scheduling discipline for service differentiation in multi-service networks, which is referred to as the Probabilistic Priority (PP) discipline. PP is based on the Strict...
An Approximation for Waiting Time Tail Probabilities in Multiclass Systems (2001)
Yuming Jiang, Chen-khong Tham, Chi-chung Ko, Senior Member
Abstract—This letter proposes a simple exponential approximation for waiting time tail probabilities in multiclass systems. The approximation is evaluated by making comparisons with simulation...
A probabilistic priority scheduling discipline for multi-service networks (2001)
Yuming Jiang, Chen-khong Tham, Chi-chung Ko
This paper proposes a novel scheduling discipline for service differentiation among traffic classes in multi-service networks, which is referred to as the Probabilistic Priority (PP) dis-cipline. The...
Providing quality of service monitoring: challenges and approaches (2000)
Yuming Jiang, Chen-khong Tham, Chi-chung Ko
Future integrated services networks will need to provide quality of service (QoS) guarantees to multimedia applications. To ensure that the contracted QoS is sustained, it is not sufficient to just...
Scalable Video Delivery to Unicast Handheld-based Clients (2000)
Abstract — This project that deals with the proxy gateway and unicast client of the larger Scalable Video Delivery project. The aim of the project is to deliver video to heterogeneous clients using...
A Web-based Real-time Traffic Monitoring Scheme Using (1998)
Yuming Jiang, Chen-khong Tham, Chi-chung Ko
Abstract. This paper presents a CORBA-based traffic monitoring scheme for monitoring real-time traffic flows. This scheme enables a Web-based network manager application to locate relevant traffic...
ATM connection admission control using modular neural networks (1997)
Neural networks, such asmulti-layer perceptron (MLP) networks which converge slowly, have been applied for tra c and congestion controlinATM networks. In this paper, we present a Connection Admission...