计算机应用 ›› 2005, Vol. 25 ›› Issue (09): 2204-2207.DOI: 10.3724/SP.J.1087.2005.02204

• 典型应用 • 上一篇    下一篇

结合CDN与P2P技术的混合流媒体系统研究

杨传栋1,3，余镇危1,3，王行刚2,3   

  1. 1.中国矿业大学(北京)机电与信息工程学院; 2.中国科学院计算技术研究所; 3.中国科学院&中国矿业大学高速计算机网络联合实验室
  • 出版日期:2005-09-01 发布日期:2011-04-11
  • 基金资助:

    教育部博士点基金资助项目(20030290003)

Research on a hybrid architecture for media streaming distribution

YANG Chuan-dong1,3，YU Zhen-wei1,3,WANG Xing-gang2,3   

  1. 1.School of Mechanical,Electronic and Information Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China;2.Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100080,China;3.The Combined High Speed Computer Network Lab,Chinese Academy of Sciences & China University of Mining and Technology,Beijing 100080,China
  • Online:2005-09-01 Published:2011-04-11

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摘要： 对基于CDN和P2P的流媒体系统进行了分析对比,指出了它们各自的优缺点,并根据因特网的结构特点,给出了一种结合这两种技术的混合流媒体系统的设计方案,提出了客户机端的内容缓存替换问题并给出了一种替换算法,对客户机离线的随机性与频繁性问题,文中给出了一种新的失效服务节点的快速替换查找策略。

关键词: 流媒体, P2P, CDN, 代理缓存, 混合流媒体系统

Abstract: To distribute video and audio data in real-time streaming mode,both CDN(Content Distributed Network) based and P2P based architectures have been proposed.However,each kind of architecture has its own limitations.The hybrid architecture which integrates CDN and P2P based streaming media distribution significantly lowers the cost of CDN server resources,without compromising the media quality delivered.In this paper,a new design of this kind of hybrid system was presented,and a resolution for some critical issues such as caching strategies at peers and the server failure recovery was given.

Key words: media streaming, P2P, CDN, caching, hybrid architecture for media streaming

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