| P2P流媒体直播系统中的合作节点选择策略 |
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| 引用本文： | 鲁逸峰,王劲林. P2P流媒体直播系统中的合作节点选择策略[J]. 微计算机信息, 2010, 0(12) |
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| 作者姓名： | 鲁逸峰 王劲林 |
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| 作者单位： | 中国科学院研究生院;中国科学院声学所国家网络新媒体工程技术研究中心; |
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| 基金项目： | 基金申请人:王劲林;项目名称:新一代高可信网络;基金颁发部门:国家高技术研究发展计划(863计划)(2008AA01A317) |
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| 摘 要： | 合作节点选择是P2P流媒体直播系统中的核心问题之一。针对此问题进行深入分析,提出了一种基于服务能力的启发式合作节点选择策略,根据节点的服务能力对其在系统中的位置进行自适应调整,使得节点最终形成层状结构,且服务能力越高的节点位于越高层。仿真结果表明,与随机选择策略相比,该策略能够显著降低系统传输延迟。
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| 关 键 词： | 对等网络(P2P) 流媒体直播 服务能力 合作节点选择 |
A Cooperative Peer Selection Strategy in P2P Live Streaming System |
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| LU Yi-feng WANG Jin-lin. A Cooperative Peer Selection Strategy in P2P Live Streaming System[J]. Control & Automation, 2010, 0(12) |
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| Authors: | LU Yi-feng WANG Jin-lin |
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| Affiliation: | LU Yi-feng WANG Jin-lin(Graduate University of Chinese Academy of Sciences,Beijing 100039,China) (National Network New Media Engineering Research Center,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | Cooperative peer selection is one of the key problems in P2P live streaming system.This paper proposes a heuristic selection strategy based on peer's service capacity.With this strategy,peers will make adaptive adjustment to its location in term of the service capacity,and finally construct a hierarchical topology,in which the peers of higher service capacity locate in higher layer. The results of simulation indicate this strategy can achieve better system delay compared with random selection strategy. |
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| Keywords: | Peer-to-Peer (P2P) Live Streaming Service Capacity Cooperative Peer Selection |
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