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P2Proxy: peer-to-peer proxy caching scheme for VOD service

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4 Author(s)
Geun Jeong Lee ; Dept. of Electr. & Comput. Eng., Kangwon Nat. Univ., Chunchon, South Korea ; Chi Kyu Choi ; Chang Yeol Choi ; Hwang Kyu Choi

In this paper, we propose a new scalable proxy caching scheme, called P2Proxy, for efficient multimedia streaming service in P2P environment. The proposed P2Proxy scheme is composed of a group of clients that requests the same media stream in a server. Each client in the group stores a different part of the stream through a regular channel into its local buffer starting at the beginning of the request until the client buffer becomes full. A client receives the request stream from other clients as long as the parts of the stream are available in the client group. The only missing parts of the stream which are not in the client group are received directly from the server through the other patching channel. All clients in the group share the parts of the media stream. Our simulation results show that the proposed P2Proxy scheme outperforms the existing scheme with respect to the server bandwidth requirement for varying request interval and client buffer size.

Published in:

Computational Intelligence and Multimedia Applications, 2005. Sixth International Conference on

Date of Conference:

16-18 Aug. 2005