Yuan Xue

Cross-layer QoS support for multimedia delivery over wireless network

Motivation

nAdvances in wireless technology
nIncreasing interest of multimedia application
nGrowing need to provide QoS

Challenges

nHighly dynamic environments
nSeverely limited resources

Goal

nEfficient, Scalable, Adaptive QoS support for wireless networks

Architecture

Differentiated Scheduler

Adaptive Class Selection

Software and deployment

The prototypes of two multimedia applications, Voice-over-WLAN and Video-over-WLAN, are developed and deployed.

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Publication

Differentiation Scheduler

Yuan Xue, Kai Chen, and Klara Nahrstedt, "Achieving Proportional Delay Differentiation in Wireless LAN via Cross-Layer Scheduling," to appear in the Journal of Wireless Communications and Mobile Computing, Special Issue on Emerging WLAN Technologies and Applications, Wiley InterScience, 2004. [pdf]

Yuan Xue, Kai Chen, and Klara Nahrstedt, "Proportional Delay Differentiation in Wireless LAN,'' in Proc. of IEEE International Conference on Communications (ICC), Paris, France, Aug 2004. [pdf]

Service Class Adaptation Middleware

Chui Sian Ong, Yuan Xue, and Klara Nahrstedt, "A Middleware for Service Adaptation in Differentiated 802.11 Wireless Networks,'' in Proc. of the Workshop on Coordinated Quality of Service in Distributed Systems (COQODS) held in conjunction with IEEE International Conference on Networks (ICON), Singapore, 2004

Please direct comments and suggestions to Yuan Xue.
Last updated: Dec 30, 2004.