计算机科学 ›› 2009, Vol. 36 ›› Issue (3): 90-92.

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基于网络拓扑和节点异构的Chord系统

  

  • 出版日期:2018-11-16 发布日期:2018-11-16

  • Online:2018-11-16 Published:2018-11-16

摘要: 结构化P2P系统在建立逻辑覆盖图时并没有考虑实际的物理拓扑结构,导致覆盖网络与底层物理网络的严重不匹配。另外,结构化P2P系统也没有考虑节点的性能差异,这都影响了系统的路由效率。在结构化对等网络Chord基础上,提出了一种改进的路由算法THChord(Topology and Heterogeneity-based Chord),把物理拓扑相近的节点聚类,并引入超级节点对查询过的信息和热点信息进行缓存。仿真实验表明,THChord的路由性能与Chord相比有了明显的提高。

关键词: 结构化对等网络 拓扑匹配 界标簇 聚类 超级节点

Abstract: Structured P2P system didn't consider the actual physical topology when building the logical overlay, which would couse a serious mismatching between logical overlay network and physical network. In addition, Structured P2P system didn't attention the het

Key words: Structured P2P, Topology matching, Landmark binning, Clustering, Supernode

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