Content partial push scheme in streaming media CDN

Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (25): 162-164.

• 网络、通信与安全 • Previous Articles Next Articles

Content partial push scheme in streaming media CDN

YANG Chuan-dong¹，YU Zhen-wei²，WANG Xing-gang³，GAO Xiao-yan²

1.Shandong Agriculture University，Taian，Shandong 271018，China
2.China University of Mining & Technology（Beijing），Beijing 100083，China
3.Institute of Computing Technology，Chinese Academy of Sciences，Beijing 100080，China

Received:1900-01-01 Revised:1900-01-01 Online:2007-09-01 Published:2007-09-01
Contact: YANG Chuan-dong

一种流媒体CDN的内容部分推送策略

杨传栋¹，余镇危²，王行刚³，高晓燕²

1.山东农业大学信息技术与工程学院，山东泰安 271018
2.中国矿业大学（北京）机电与信息工程学院，北京 100083
3.中国科学院计算技术研究所，北京 100080

通讯作者: 杨传栋

Abstract

Abstract: In streaming media CDN，pushing copies of the new content to caching proxies ahead of time，while allow others to be pulled from the origin server，is an effective way to reduce the client start time and save network resource.Based on the characteristics of the intra-video skewness，this paper has proposed a method that partially pushing streaming media objects to cache proxies，and put forward an stochastic algorithm of destination selection using the history access information the origin server recorded.The experiments indicate that these mechanisms can make the system maintain better performance.

Key words: streaming media, CDN, content distribution, cache proxy

摘要： 在流媒体CDN中，采用“推拉”结合的流媒体内容分发方式可进一步减少客户的平均启动时间，降低网络资源的消耗，根据流媒体文件的部分访问特性给出了一种流媒体内容的部分推送策略，并利用源服务器统计的历史访问信息，提出了目的代理缓存服务器的一种随机选择算法。实验表明该策略及算法可提高系统性能。

关键词: 流媒体, CDN, 内容分发, 缓存代理

YANG Chuan-dong¹，YU Zhen-wei²，WANG Xing-gang³，GAO Xiao-yan². Content partial push scheme in streaming media CDN[J]. Computer Engineering and Applications, 2007, 43(25): 162-164.

杨传栋¹，余镇危²，王行刚³，高晓燕². 一种流媒体CDN的内容部分推送策略[J]. 计算机工程与应用, 2007, 43(25): 162-164.

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Content partial push scheme in streaming media CDN

一种流媒体CDN的内容部分推送策略

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