Analysis of Block-aware Peer Adaptations in Substream-based P2P

Kulatunga, Chamil (2010) Analysis of Block-aware Peer Adaptations in Substream-based P2P. In: International ICST Conference on Broadband Communications, Networks and Systems (BroadNets 2010), 25-27 October 2010, Athens, Greece.


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Peer-to-Peer (P2P) video delivery using substreams supports uplink heterogeneities of the peers and hence could optimise sharing capabilities with minimum free-riding peers. Therefore, substream-based applications such as PPLive and CoolStreaming have been well accepted after successful deployments in the public Internet. In this approach, a child peer can find a parent peer for a substream independent of the other parent peers that it receives the remaining substreams. In general, there can be more than one substream between a parent and a child. The block-aware adaptation algorithm in CoolStreaming changes the parent peer for all such substreams when a child peer experiences poor performance even on one of its substreams from the parent. However, lagging of one substream in such a scenario is likely while others are not affected, when the parent receives its substreams through multiple paths. We propose a fine-grained approach (changing substream by substream) in peer adaptations to improve overlay network performance. This approach will in turn, is designed also to minimise the diversity of parents at the child peer by joining with a well-performing another parent, which is expected to curtail complexities in a network-assisted P2P framework.

Item Type: Conference or Workshop Item (Paper)
Departments or Groups: Telecommunications Software and Systems Group
Divisions: School of Science > Department of Computing, Maths and Physics
Depositing User: Chamil Kulatunga
Date Deposited: 01 Oct 2010 10:56
Last Modified: 22 Aug 2016 10:26

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