| 基于经济模型的分布式流媒体缓存策略 |
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| 引用本文： | 孙名松,姚亮,张潇依. 基于经济模型的分布式流媒体缓存策略[J]. 计算机工程, 2009, 35(17): 64-65 |
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| 作者姓名： | 孙名松 姚亮 张潇依 |
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| 作者单位： | 1. 哈尔滨理工大学网络信息中心,哈尔滨,150080
2. 哈尔滨理工大学计算机科学与技术学院,哈尔滨,150080 |
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| 摘 要： | 为提高基于P2P技术的流媒体点播系统的服务质量，提出一种基于经济模型的分布式流媒体缓存策略，采用分布式一致性算法计算视频分段的流行度，并根据内容流行度的高低给出相应的缓存置换策略。仿真实验结果表明，该策略可以有效降低服务器的负载以及启动延时，能够获得较好的性能。
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| 关 键 词： | P2P技术 经济模型 缓存 内容流行度 |
| 修稿时间： | |
Distributed Streaming Media Caching Strategy Based on Economy Model |
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| SUN Ming-song,YAO Liang,ZHANG Xiao-yi. Distributed Streaming Media Caching Strategy Based on Economy Model[J]. Computer Engineering, 2009, 35(17): 64-65 |
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| Authors: | SUN Ming-song YAO Liang ZHANG Xiao-yi |
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| Affiliation: | 1. Network Information Center;Harbin University of Science & Technology;Harbin 150080;2. College of Computer Science & Technology;Harbin 150080 |
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| Abstract: | In order to promote the Quality of Service(QoS) of streaming Video-on-Demand(VoD) system based on P2P technology,a distributed streaming media caching strategy based on economy model is proposed,which adopts distributed averaging algorithm to compute the popularity degree of video segments,and gives corresponding replacement strategies according to the content popularity degree. Simulation experimental results show this strategy can reduce consumption of server's load effectively,and obtain better performan... |
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| Keywords: | P2P technology economy model caching content popularity degree |
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