P2Cast: peer-to-peer patching scheme for VoD service
WWW '03 Proceedings of the 12th international conference on World Wide Web
SplitStream: high-bandwidth multicast in cooperative environments
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Is high-quality vod feasible using P2P swarming?
Proceedings of the 16th international conference on World Wide Web
Analysis of bittorrent-like protocols for on-demand stored media streaming
SIGMETRICS '08 Proceedings of the 2008 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Is There a Future for Mesh-Based live Video Streaming?
P2P '08 Proceedings of the 2008 Eighth International Conference on Peer-to-Peer Computing
InstantLeap: fast neighbor discovery in P2P VoD streaming
Proceedings of the 18th international workshop on Network and operating systems support for digital audio and video
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Video-on-demand (VoD) is a next-generation Internet application of increasing interest allowing users to start watching a movie almost instantaneously by downloading the video on-the-fly. Provided that all users contribute to the system, shifting to the P2P paradigm allows efficient broadcast with a limited-bandwidth source. In VoD applications pieces are downloaded in order. This prevents us from directly applying a BitTorrent-like tit-for-tat incentive scheme. We advocate the use of a loose structure in P2P VoD applications to achieve high playback rates. In this paper we propose a decentralized piece dissemination scheme built on loosely coupled structures maintained using gossip. Peers are grouped into clusters depending on their playback position. Swarming is performed within the clusters while distributed feeding ensures that less advanced clusters get missing pieces from more advanced ones. Our simulations demonstrate that structured dissemination improves from 61% to 77% the achievable playback rate.