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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2008, Vol. 9 Issue (4): 445-456    DOI: 10.1631/jzus.A071343
Electrical & Electronic Engineering     
Rate-distortion optimized bitstream switching for peer-to-peer live streaming
Jin-feng ZHANG, Rong-gang WANG, Jian-wei NIU, Yuan DONG, Hai-la WANG
School of Computer Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China; France Telecom R&D Beijing, Beijing 100080, China
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Abstract  Peer-to-peer (P2P) technology provides a cost-effective and scalable way to distribute video data. However, high heterogeneity of the P2P network, which rises not only from heterogeneous link capacity between peers but also from dynamic variation of available bandwidth, brings forward great challenge to video streaming. To attack this problem, an adaptive scheme based on rate-distortion optimization (RDO) is proposed in this paper. While low complexity RDO based frame dropping is exploited to shape bitrate into available bandwidth in peers, the streamed bitstream is dynamically switched among multiple available versions in an RDO way by the streaming server. Simulation results show that the proposed scheme based on RDO achieves great gain in overall perceived quality over simple heuristic schemes.

Key words： Stream switching      Frame dropping      Peer-to-peer (P2P)      Rate-distortion optimization (RDO)     
Received: 26 June 2007      Published: 13 March 2008
CLC:  TN919.8  
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Jin-feng ZHANG
Rong-gang WANG
Jian-wei NIU
Yuan DONG
Hai-la WANG
Cite this article:

Jin-feng ZHANG, Rong-gang WANG, Jian-wei NIU, Yuan DONG, Hai-la WANG. Rate-distortion optimized bitstream switching for peer-to-peer live streaming. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(4): 445-456.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A071343     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2008/V9/I4/445

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