| 一种基于分段的网络流媒体代理缓存策略 |
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| 引用本文： | 吕冬,沈苏彬.一种基于分段的网络流媒体代理缓存策略[J].南京邮电大学学报(自然科学版),2011,31(1):76-82. |
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| 作者姓名： | 吕冬 沈苏彬 |
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| 作者单位： | 南京邮电大学,计算机学院,江苏,南京,210046 |
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| 基金项目： | 国家高技术研究发展计划(863计划)(2006AA01Z208); 江苏省科技支撑计划(BE2009157)资助项目 |
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| 摘 要： | 针对大量用户访问网络流媒体系统时出现的响应速度慢、网络拥塞严重、缓存利用率低和容量不足的问题,提出了一种IPTV环境下的PSU代理缓存策略,利用分段缓存和动态调整存储比例的方法,提高流媒体代理服务器的存储效率和服务性能.给出了流媒体文件的分段方法和热度概念,通过增加前缀缓存数量的方法,优化了IPTV三层结构的存储比例,...
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| 关 键 词： | 流媒体 分段缓存 动态调整 热度 |
A Segment-Based Proxy Caching Scheme for Streaming Media in Networks |
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| LV Dong-dong,SHEN Su-bin.A Segment-Based Proxy Caching Scheme for Streaming Media in Networks[J].Journal of Nanjing University of Posts and Telecommunications,2011,31(1):76-82. |
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| Authors: | LV Dong-dong SHEN Su-bin |
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| Institution: | LV Dong-dong,SHEN Su-bin College of Computer,Nanjing University of Posts and Telecommunications,Nanjing 210046,China |
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| Abstract: | For the problems of slow system response,serious network congestion,low cache utilization,and inadequate capacity occurred during a large number of users accessing the network streaming media system,a PSU proxy caching scheme of IPTV is proposed in this paper,which takes the methods of segment caching and dynamic adjustment to improve the storage efficiency and service performance.This paper proposes the way of segmenting streaming media file and the concept of hot weight,optimizes the storage proportion of... |
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| Keywords: | streaming media segment caching dynamic adjustment hot weight |
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