Professor Carey Williamson
Two of the most exciting and fastest-growing Internet technologies in recent years are the World Wide Web and wireless networks. The Web has made the Internet available to the masses, and wireless technologies have revolutionalized the way people think about networks. One of the primary challenges in this new networking context is "performance transparency": providing an end-user Internet experience that is (hopefully) no worse than that in the traditional wired-Internet desktop environment. In this talk, I will focus on the role of "awareness" in the protocol stack, and its influence on network protocol performance. Several examples will be used to illustrate the issues: wireless TCP, ad hoc routing, and TCP performance in multi-hop ad hoc networks. These examples will highlight subtle and interesting fairness, efficiency, and performance issues that arise from multi-layer protocol interactions. Solutions for these problems, including context-aware protocols and cross-layer design, will be discussed. Related research challenges in wireless mesh networks and sensor networks will also be identified.
Dr. Carey Williamson is an iCORE (Informatics Circle of Research Excellence) Professor in the Department of Computer Science at the University of Calgary, specializing in "Broadband Wireless Networks, Protocols, Applications, and Performance". He also holds an NSERC/iCORE/TELUS Mobility Industrial Research Chair in "Wireless Internet Traffic Modeling".
His educational background includes a B.Sc.(Honours) degree in Computer Science from the University of Saskatchewan in 1985, and a Ph.D. in Computer Science from Stanford University in 1992.
Dr. Williamson's research interests include Internet protocols, wireless networks, network traffic measurement, workload characterization, network simulation, and Web server performance.
Sponsored by The Society for Modeling and Simulation International
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