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计算机工程 ›› 2011, Vol. 37 ›› Issue (2): 94-96. doi: 10.3969/j.issn.1000-3428.2011.02.032

• 网络与通信 • 上一篇    下一篇

PeerCast广播机制与维护算法的研究与改进

王延伟,刘 琚   

  1. (山东大学信息科学与工程学院,济南 250100)
  • 出版日期:2011-01-20 发布日期:2011-01-25
  • 作者简介:王延伟(1983-),男,硕士研究生,主研方向:P2P流媒体;刘 琚,教授、博士生导师
  • 基金资助:

    国家自然科学基金资助项目(60872024);高等学校科技创新工程重大项目培育资金资助项目(708059);山东省自然科学基金资助项目(Y2007G04)

Research and Improvement of PeerCast’s Broadcasting Mechanism and Maintaining Algorithm

WANG Yan-wei, LIU Ju   

  1. (School of Information Science and Engineering, Shandong University, Jinan 250100, China)
  • Online:2011-01-20 Published:2011-01-25

摘要:

在分析PeerCast广播机制和节点维护算法的基础上,增加上游节点向下游节点广播状态信息的函数,改进节点的加入和维护策略,并在局域网内进行实验验证。实验结果表明,改进的广播机制和节点维护算法能够减少节点断线重连的时间,提高断线重连的成功率,降低断线后对YP的访问次数,减轻YP的压力。

关键词: 对等网络, 流媒体, PeerCast广播机制

Abstract:

This paper proposes an improved broadcasting mechanism and a node-maintaining algorithm based on the analysis of PeerCast broadcasting mechanism and node-maintaining algorithm. Experimental results show that the proposed scheme reduces the time of reconnection and improves the success rate of reconnection when disconnected in PeerCast. And it decreases the times of visiting YP(Yellow Page) after disconnection which reduces the stress of YP.

Key words: P2P, streaming media, PeerCast broadcasting mechanism

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