Optimized streaming media proxy and its applications

Authors:
Hui Guo;Guobin Shen;Zhiguang Wang;Shipeng Li
Affiliations:
Department of Computer Science and Technology, Petroleum University of China, Beijing, China;Microsoft Research Asia, Sigma Center, Beijing, China;Department of Computer Science and Technology, Petroleum University of China, Beijing, China;Microsoft Research Asia, Sigma Center, Beijing, China
Venue:
Journal of Network and Computer Applications - Special issue: Network and information security: A computational intelligence approach
Year:
2007

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Abstract

Multimedia streaming is one of the most popular services on the current Internet. However, the major problem hinders streaming media applications is the network bandwidth. In this paper, we put forward a optimized streaming proxy system and think of utilizing it in peer-to-peer (P2P) applications. The main contribution of our proxy system is RTP segments splicing, prefix caching size determination and prefetching techniques, which are detailed discussed in this paper. By validating our implementation, the experimental results show that the streaming proxy can effectively contribute to reduce the server and backbone network load, thus achieve improved media quality and scalability. In addition, P2P network is a fascinate way for Internet resource sharing, many of researchers are devoting to research on P2P-based client communications. In our project, we make use of our proxy prototype into the streaming sharing over P2P network, each peer node just like a lightweight proxy between the server and the target peers. The real-time video sharing (RVS) system efficiently utilizes network bandwidth between peer clients through combining with our proxy as expected.