Peer-assisted VoD Systems: an Efficient Modeling Framework

Abstract : We analyze a peer-assisted Video-on-Demand system in which users contribute their upload bandwidth to the redistribution of a video that they are downloading or that they have cached locally. Our target is to characterize the additional bandwidth that servers must supply to immediately satisfy all requests to watch a given video. We develop an approximate fluid model to compute the required server bandwidth in the sequential delivery case, as well as in controlled Bit-Torrent like swarms. Our approach is able to capture several stochastic effects related to peer churn, upload bandwidth heterogeneity, non-stationary traffic conditions, which have not been documented or analyzed before. At last, we provide important hints for the design of efficient peer-assisted VoD systems under server capacity constraints.
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[Research Report] RR-8184, INRIA. 2012
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Contributeur : Delia Ciullo <>
Soumis le : lundi 17 décembre 2012 - 15:08:56
Dernière modification le : samedi 27 janvier 2018 - 01:31:42
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  • HAL Id : hal-00759377, version 1



Delia Ciullo, Valentina Martina, Michele Garetto, Emilio Leonardi, Giovanni Luca Torrisi. Peer-assisted VoD Systems: an Efficient Modeling Framework. [Research Report] RR-8184, INRIA. 2012. 〈hal-00759377〉



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