ct 15(4): e5

Research Article

Hybrid Peer-to-peer Streaming System for Mobile Peers with Transcoding

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  • @ARTICLE{10.4108/icst.mobimedia.2015.258988,
        author={Shuai Zeng and Guo-feng Zhao and Chuan Xu},
        title={Hybrid Peer-to-peer Streaming System for Mobile Peers  with Transcoding},
        journal={EAI Endorsed Transactions on Creative Technologies},
        keywords={streaming system, peer-to-peer network, video transmission, data distribution, mobile communications},
  • Shuai Zeng
    Guo-feng Zhao
    Chuan Xu
    Year: 2015
    Hybrid Peer-to-peer Streaming System for Mobile Peers with Transcoding
    DOI: 10.4108/icst.mobimedia.2015.258988
Shuai Zeng1,*, Guo-feng Zhao1, Chuan Xu1
  • 1: Chongqing University of Posts and Telecommunications
*Contact email: maillinger@gmail.com


In this paper, we study in hybrid peer-to-peer (P2P) streaming system, which includes fixed peers and mobile peers in the same network, and propose a flow rate allocation algorithm to optimize the streaming system. In the proposed algorithm, based on transcoding technique, we describe how to exchange original and transcoded data among video source server, fixed and mobile peers. The purpose of our algorithm is to reduce the bandwidth demand of video source server, while ensuring the flow rate of video data sending to any peer no less than its video coding rate. We compare the performance of P2P streaming system using our algorithm with traditional design in various situations in the simulation experiment, and test how much benefit the system can get from the new algorithm. The results show that, if the flow rate of video data is allocated appropriately, better performance of streaming system can be achieved.