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Peer-to-Peer Streaming of Layered Video: Efficiency, Fairness and Incentive

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Executive Summary

Recent advance in Scalable Video Coding (SVC) makes it possible for users to receive the same video with different qualities. To adopt SVC in P2P streaming, two key design questions need to be answered: layer subscription: how many layers each peer should receive? layer scheduling: how to deliver to peers the layers they subscribed? From the system point of view, the most efficient solution is to maximize the aggregate video quality on all peers, i.e., the social welfare. From individual peer point of view, the solution should be fair. Fairness in P2P streaming should additionally take into account peer contributions to make the solution incentive-compatible.

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