Journal of Communications and Networks

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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A New Fast P2P Video Transmission Method Applied in Asymmetrical Speed Channel Environment

  • Wang, Zhang (Chinese Academy of Surveying and Mapping) ;
  • Zhang, Jixian (Chinese Academy of Surveying and Mapping) ;
  • Li, Haitao (Chinese Academy of Surveying and Mapping) ;
  • Liu, Jian (Huazhong University of Science and Technology)
  • Received : 2008.11.23
  • Accepted : 2009.06.15
  • Published : 2010.06.30
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Abstract

In an asymmetrical speed channel environment like asymmetric digital subscriber line, the up-link bandwidth is normally smaller than the down-link bandwidth, which will lead to extremely low utilization of down-link bandwidth when current P2P video transmission is applied. To overcome this, a new fast P2P video transmission method applied in an asymmetrical speed channel environment is proposed in this paper. On the basis of the many-to-one concept, the proposed method uses a new multipeer aggregation technique to enhance the utilization of down-link bandwidth. In addition, an adaptive peer assignment algorithm is also introduced in order to minimize the overall transmission time. Experimental results show that by using our proposed method, the utilization of down-link bandwidth is significantly improved, and the overall transmission time is greatly reduced.

Keywords

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