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Distributed Storage to Support User Interactivity in Peer-to-Peer Video Streaming

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3 Author(s)
W. -p. Ken Yiu ; Department of Computer Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong. Email:, ; Xing Jin ; S. -h. Gary Chan

Providing random access function in peer-to-peer on-demand video streaming is a challenging task, due to not only the asynchronous user interactivity but also the unpredictability of group dynamics. In this paper, we propose VMesh, a distributed peer-to-peer video-on-demand (VoD) streaming scheme which efficiently supports random seeking functionality. In VMesh, videos are divided into segments and stored in peers in a distributed manner. An overlay mesh is built upon peers to support jumping forward/backward, pause and restart during playback. Our scheme utilizes the large total storage capacity of peers to improve the segment supply so as to support interactive commands in a scalable manner. Through simulation, we show that our system outperforms a recent work, P2VoD. VMesh also has low segment missing rate under random member join/leave. In addition, the system achieves low joining and seeking latencies which are crucial requirements in an interactive VoD system.

Published in:

2006 IEEE International Conference on Communications  (Volume:1 )

Date of Conference:

June 2006