| 大规模流媒体直播系统扰动性研究* |
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| 引用本文： | 林予松,陈安领,王宗敏a.大规模流媒体直播系统扰动性研究*[J].计算机应用研究,2010,27(1):181-183. |
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| 作者姓名： | 林予松 陈安领 王宗敏a |
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| 作者单位： | 1. 郑州大学信息网络省重点学科开放实验室,郑州,450052;郑州大学信息工程学院,郑州,450052
2. 郑州大学信息网络省重点学科开放实验室,郑州,450052 |
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| 基金项目： | 国家“863”计划资助项目（2008AA01A315） |
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| 摘 要： | 在基于P2P技术的大规模流媒体直播系统中，节点频繁地加入和退出，形成扰动问题，严重影响了系统设计和整体性能。通过分析对等网络节点会话时间概率分布理论，在充分利用会话时间长的节点基础上，提出了抗扰动节点选择机制来增强系统稳定性。通过对比实验证明，该方案降低了扰动问题对流媒体直播系统的影响。
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| 关 键 词： | 对等网络 应用层组播 节点选择机制 扰动性 |
Research on churn problem in large-scale live streaming media system |
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| LIN Yu-song,CHEN An-ling,WANG Zong-mina.Research on churn problem in large-scale live streaming media system[J].Application Research of Computers,2010,27(1):181-183. |
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| Authors: | LIN Yu-song CHEN An-ling WANG Zong-mina |
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| Affiliation: | (a.Henan Provincial Key Laboratory on Information Network, b.School of Information Engineering, Zhengzhou University, Zhengzhou 450052, China) |
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| Abstract: | In the P2P live broadcasting system, the nodes join and leave the P2P system at high rates, which is called churn problem and seriously affects the system design and performance. Through analysis of probability distribution theory of the session time in the P2P system, this paper gave a peer selection strategy against the churn to enhance system stability which was full use of the long session time of the nodes. Finally, it is proved this strategy reduces the impact of the churn. |
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| Keywords: | P2P application layer multicast peer selection strategy churn |
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