Monday February 21 4:00 - 4:50 PM Kelley 1001
Nazanin Magharei Postdoctoral Researcher Department of Computer Science University of Oregon Live P2P Streaming: Design and Challenges Peer-to-peer (P2P) overlays offer a promising approach to stream multimedia from a single source to a large number of users over the Internet without any special support from the network. Design of a scalable P2P streaming mechanism that accommodates heterogeneity of peers' bandwidth and copes with dynamics of peer participation while ensuring in-time delivery of the multimedia content to individual peers is extremely challenging. Besides these fundamental challenges, P2P streaming applications are facing practical issues such as the following: (i) incentivizing the resource contribution and dealing with free-loaders specially when the aggregate resources (i.e. bandwidth) is not sufficient to deliver the full quality stream to all peers, (ii) providing QoS in presence of poor connectivity among peers (e.g. biased and clustered connectivity), and (iii) decreasing the costly inter-ISP P2P traffic while ensuring a desirable performance for P2P streaming systems. In this talk, I will discuss challenges in the design as well as practical issues of live P2P streaming systems. In particular, I will describe my work on performance-driven design of a scalable live P2P streaming system. Further, to touch on some practical issues, I will present the design of an ISP-friendly P2P streaming mechanism that minimizes the inter-ISP traffic while ensuring the delivery of high quality stream to peers. Finally, I will briefly discuss future directions of my research. Biography Nazanin Magharei has received her PhD degree from Department of Computer and Information Science at the University of Oregon. She earned her B.Sc in electrical engineering from Sharif University in 2001. Her research interests are computer networks and distributed systems in general with particular interest in peer-to-peer systems and multimedia content delivery. She was an intern in Thomson research lab and Bell-labs (Alcatel-Lucent). Nazanin has published more than 10 papers in prestigious conferences and journals and is serving as a reviewer of over 20 journal and conferences. _______________________________________________ Colloquium mailing list [email protected] https://secure.engr.oregonstate.edu/mailman/listinfo/colloquium
