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Aggregate Flow Control for P2P-TV Streaming Systems

TitleAggregate Flow Control for P2P-TV Streaming Systems
Publication TypeConference Paper
Year of Publication2011
AuthorsBirke, R., C. Kiraly, E. Leonardi, M. Mellia, M. Meo, and S. Traverso
Conference NameNEM Summit 2011
Date Published09/2011
Conference LocationTorino
Abstract

Peer-to-Peer streaming systems (or P2P-TV) provide low cost infrastructures for the support of live video distribution over the Internet. They are attracting an increasing attention from the research community, the developers and practitioners. In this paper we consider P2P streaming systems based on mesh overlays and focus on the matter of automatically adjusting peer transmission rate to match the demand of the system and not overloading the uplink capacity of peers. We propose Hose Rate Control (HRC), a novel scheme to control the speed at which peers offer chunks to other peers in order to cotrol peer uplink capacity utilization. This is a critical issue to deal with in heterogeneous scenarios like the one faced in the Internet, where peer upload capacity is unknown and varies widely. Presenting extensive simulation and actual experimental results, we show that HRC nicely adapts to the actual peer available upload bandwidth and system demand, so that users’ Quality of Experience is greatly enhanced.