| P2P流媒体系统中数据请求任务转移算法研究 |
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| 引用本文： | 卞建军,石伟,朱艳琴,纪其进.P2P流媒体系统中数据请求任务转移算法研究[J].计算机应用与软件,2012(1):60-62,66. |
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| 作者姓名： | 卞建军 石伟 朱艳琴 纪其进 |
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| 作者单位： | 苏州大学计算机科学与技术学院;江苏省计算机信息处理新技术重点实验室 |
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| 基金项目： | 国家自然科学基金项目(61070170);江苏省基础研究计划(BK2009597);江苏省高校自然科学研究计划项目(08KJB520011);苏州市应用基础研究计划项目(SYSG09024) |
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| 摘 要： | 数据请求任务调度是P2P流媒体系统设计时需要考虑的重要问题之一。针对网状拓扑结构中每个节点接收到的请求分布不均问题,提出一种基于带宽和链路延迟的数据请求任务转移算法。实验结果表明,相比于未采用数据请求任务转移的算法,所提算法提高了平均播放质量和上行带宽利用率,从而改善了系统的性能。
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| 关 键 词： | P2P流媒体系统 数据调度 任务转移 |
ON MIGRATION ALGORITHM OF DATA REQUEST TASK FOR P2P MEDIA STREAMING SYSTEMS |
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| Bian Jianjun,Shi Wei,Zhu Yanqin,Ji Qijin.ON MIGRATION ALGORITHM OF DATA REQUEST TASK FOR P2P MEDIA STREAMING SYSTEMS[J].Computer Applications and Software,2012(1):60-62,66. |
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| Authors: | Bian Jianjun Shi Wei Zhu Yanqin Ji Qijin |
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| Affiliation: | 1,2 1(School of Computer Science and Technology,Soochow University,Suzhou 215006,Jiangsu,China) 2(Provincial Key Laboratory for Computer Information Processing Technology,Soochow University,Suzhou 215006,Jiamgsu,China) |
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| Abstract: | Data request task scheduling is one of the important issues having to be considered when designing the P2P media streaming system.Aiming at the problem of unbalanced distribution of the requests received by each peer in mesh topology structure,this paper presents an algorithm of data request task migration algorithm based on bandwidth and link delay of neighbour peers.Comparing with the algorithm not using request task migration,the experiment result shows that the proposed algorithm improves the system performance with higher average quality of media playback and better upload bandwidth utilisation. |
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| Keywords: | P2P media streaming system Data scheduling Task migration |
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