| 一种P2P网络中基于位置感知的节点选择策略 |
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| 引用本文： | 刘永贤,王洪波,程时端,林宇.一种P2P网络中基于位置感知的节点选择策略[J].信息通信技术,2009,3(5):11-18. |
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| 作者姓名： | 刘永贤 王洪波 程时端 林宇 |
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| 作者单位： | 北京邮电大学网络与交换技术国家重点实验室,北京,100876 |
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| 基金项目： | 中兴通讯研究基金、高等学校博士学科点专项科研基金，教育部新世纪优秀人才支持计划 |
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| 摘 要： | P2P网络作为一种覆盖网络,邻居节点的选择若不考虑网络层、物理层信息,将导致较低的数据传输速度和不必要的跨运营商流量,从而大大限制P2P技术的应用。位置感知策略可以解决这些问题。本文对现有位置感知策略进行分类,并通过分析比较指出了现有位置感知策略的优缺点。提出了一种基于IP地址库的简单有效的节点选择策略,能够感知节点的运营商信息和物理位置。
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| 关 键 词： | P2P网络 节点选择 位置感知 IP地址库 |
NECT-07-0109)A Locality-Aware Based Method for Peer Selection in P2P Network |
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| Liu Yongxian,Wang Hongbo,Cheng Shiduan,Lin Yu.NECT-07-0109)A Locality-Aware Based Method for Peer Selection in P2P Network[J].Information and Communications Technologies,2009,3(5):11-18. |
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| Authors: | Liu Yongxian Wang Hongbo Cheng Shiduan Lin Yu |
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| Affiliation: | (State Key Laboratory of Networking and Switching, Beijing University of Posts ＆ Telecommunications, Beijing 100876, China) |
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| Abstract: | If neighbors＇ information involving network layer and locality is scarcely taken into account in Peer Selection in P2P network, two problems of low transmission rate and unnecessary cross- ISP traffic will be caused, which will then lead to a limit to the spread of P2P technology. Locality awareness can solve these problems. This paper classifies related locality-aware methods, pointing out the advantages and disadvantages of each one by comparison and analysis, then proposes an easy-to-implement and effective method for peer selection based on IP address base, which considers neighbors＇ information of ISP and locality. |
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| Keywords: | P2P Network Peer Selection Locality-Aware IP Address Base |
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