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计算机工程 ›› 2008, Vol. 34 ›› Issue (17): 12-14. doi: 10.3969/j.issn.1000-3428.2008.17.005

• 博士论文 • 上一篇    下一篇

基于对等网的流媒体数据分配算法

杨 戈1,2,廖建新1,朱晓民1,黄 海1,徐梦石3   

  1. (1. 北京邮电大学网络与交换技术国家重点实验室,北京 100876;2. 辽宁大学信息科学与技术学院,沈阳 110036; 3. 江西农业大学中科软件学院,南昌 330045)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-09-05 发布日期:2008-09-05

Data Assignment Algorithm for Streaming Media Based on Peer to Peer

YANG Ge1,2, LIAO Jian-xin1, ZHU Xiao-min1, HUANG Hai1, XU Meng-shi3   

  1. (1. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876; 2. College of Information Science and Technology, Liaoning University, Shenyang 110036; 3. School of Software Engineering, Jiangxi Agricultural University, Nanchang 330045)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-09-05 Published:2008-09-05

摘要: 提出一种基于对等网的流媒体数据分配算法(DA2SMp2p),可根据网络环境的变化动态调整数据分配,在提供节点中途失效时,可以比MBDAp2p算法、OTSp2p算法和Algorithm_1算法保持更好的流媒体连续性,提供节点没有失效时,所取得的段缓冲延迟与MBDAp2p算法相同,比OTSp2p算法和Algorithm_1算法小。DA2SMp2p算法、MBDAp2p算法和OTSp2p算法保持连续播放的最小缓冲延迟相同,都比Algorithm_1算法小。

关键词: 流媒体, 对等网, 缓冲延迟, 数据分配

Abstract: This paper proposes a Data Assignment Algorithm Based on Peer to Peer for Streaming Media(DA2SMp2p). The algorithm can dynamically adjust the data assignment according to the changes of the network. When a supply peer is invalidated, the algorithm can keep more continuity of streaming media than Minimum Buffering Delay media data Assignment algorithm(MBDAp2p), an optimal media data assignment algorithm(OTSp2p) and Algorithm_1. When no supply peer is invalidated, segment buffering delay of DA2SMp2p is the same as MBDAp2p and smaller than OTSp2p and Algorithm_1 while the minimum buffering delay of a continuous playback for DA2SMp2p, MBDAp2p and OTSp2p algorithms is same. The minimum buffering delay of a continuous playback for Algorithm_1 is the biggest.

Key words: streaming media, peer to peer, buffering delay, data assignment

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