[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
Abstract:
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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