[talks] 4:30pm Thu Jun 25 talk on P2P live video streaming in E-Quad B-205

Jennifer Rexford jrex at CS.Princeton.EDU
Tue Jun 23 14:57:10 EDT 2009

Speaker: S. H. Gary Chan, Department of Computer Science and Engineering
         The Hong Kong University of Science and Technology (HKUST)

Title: Proxy-P2P Live Streaming

Date/time: 4:30pm on Thursday June 25th

Location: B-205 in the E-Quad

Peer-to-peer (P2P) is a promising technique for live streaming to
large distributed group (such as IPTV services).  In this talk, we
address the design of a proxy-based peer-to-peer (proxy-P2P) streaming
network, where the proxies (or super-nodes) are used as "backbone" to
carry streams to local users (peers).  Users, after mapping to their
nearby proxies, get their streams in a peer-to-peer manner.

We investigate how to achieve bandwidth-efficient low-delay streaming
in such a network.  At the proxy level, we study the use of mesh to
achieve a certain streaming rate requirement.  Since the delay is the
slowest path from the source, we design a distributed algorithm called
FastMesh which seeks to minimize the worst-case delay of the proxies.
At the peer level, we propose and study an efficient distributed
algorithm called SIM (Scalable Island Multicast) which combines
overlay with IP-multicast.  Through simulation and PlanetLab
experiments, we show that our algorithms substantially outperform
traditional and state-of-the-art approaches.  At HKUST, we are
currently implementing such a proxy-P2P streaming network and I will
share our experience on that at the end of the talk.

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