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This paper considers applying multiple description coding in data-driven P2P live streaming networks to provide incentives for redistribution. In the system, a video is encoded into multiple descriptions with each description having equal importance. They consider a heterogeneous system with peers having different uplink bandwidths. They design a distributed protocol in which a peer contributing more uplink bandwidth receives more descriptions and consequently better video quality. Previous approaches consider single-layer video, where each peer receives the same video quality no matter how much bandwidth it contributes to the system. The simulation results show that the approach can provide differentiated video quality commensurate with a peer's contribution to other peers.

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Format:PDFSize:314 KB
Date:Mar 2007
Pages:4

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