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非结构化P2P系统复本研究 被引量:5

Study on Replication in Unstructured P2P System
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摘要 针对非结构化P2P系统中的复本放置问题,提出了一种新的放置策略,该策略充分考虑非结构化P2P系统中节点的异质性,将受欢迎程度高的文件的复本放置在高性能的节点上,增加了受欢迎程度高的文件的可用性,同时由于系统中受欢迎程度高的文件的复本增加,减少了系统查询文件时所要搜索的节点数.仿真实验和分析表明,该复本放置策略能有效地提高文件的可用性,降低查询带来的网络流量. To improve unstructured peer-to-peer system performance, one wants to minimize the number of peers that have to be probed before the query is answered. One way to do this is to replicate the sharing data on several peers. This paper proposes a replication strategy with the consideration of heterogeneous resources among peers in the unstructured peer-to-peer system. In our strategy, the system copies the replication to high capacity peers. Experimental result shows our replication strategy reduces the network traffic greatly, and improves availability of the sharing data.
出处 《小型微型计算机系统》 CSCD 北大核心 2005年第11期1903-1906,共4页 Journal of Chinese Computer Systems
基金 信息产业部电子信息产业发展基金[200211006]资助
关键词 对等网络 复本 覆盖网Zipf分布 Peer-to-peer system replication overlay network Zipf distribution
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参考文献10

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同被引文献30

  • 1张虎,董小社,伍卫国,钱德沛,戴罗庚.一种基于日志合并优化的数据同步机制[J].小型微型计算机系统,2006,27(12):2183-2188. 被引量:6
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