Abstract :

In this talk, I will first present a simple model for analyzing the performance of p2p streaming, based on our paper published recently in ICNP 2007. Although p2p streaming has already been proven quite successful in deployed systems (such as PPLive), we believe our model is the first analytical model to study such systems. Using this approach, we are able to analytically compare a couple of simple piece selectin strategies: Greedy (or sequential) and Rarest First, and identify the better strategy under different scenarios and performance metrics. We then show why a mixed strategy can out-perform both. I will then briefly talk about our recent work in modeling p2p streaming when peers are not synchronized in their playback.

Biography :

Professor Dah Ming Chiu joined the Department of Information Engineering of CUHK in 2002. Prior to that, he had many years of industrial experience in the US, having worked for Sun Labs, DEC and Bell Labs. He received his undergraduate degree from Imperial College London, and PhD from Harvard University. He is currently an associate editor for IEEE/ACM Transaction on Networking, and he is an IEEE Fellow. Professor Chiu's current research interest include p2p systems, wireless networking, and architecture and design issues of the Internet, in particular the economic issues of the Internet.