计算机工程与应用2011，Vol.47Issue(25)：89-92,4.DOI:10.3778/j.issn.1002-8331.2011.25.023
无标度异构网络中的层次化P2P覆盖网设计
Hierarchical P2P overlay design in scale-free heterogenous networks
摘要
Abstract
Current P2P applications suffer performance degradation from the problems such as load imbalance, topology mismatch between overlay and underlay.To deal with the problems for scale-free networks,the idea of implementing two functions of routing message and maintaining service index on different layers of overlay is proposed.Taking Chord as example, algorithms for building cluster and Chord overlay are designed, the 3-layer architecture and 2-dimensional address ID space are implemented, and an analytic model is proposed for describing node's load. Simulation results indicate that compared with the 2-layer Chord-centered overlay in previous researches, this overlay excels in many metrics such as query path length,load,and query delivery ratio.关键词
对等计算/无标度网络/超级节点/拓扑意识/负载均衡Key words
P2P computing/scale-free network/super peer/topology awareness/load balance分类
信息技术与安全科学引用本文复制引用
柯鹏,韩梅,李文翔..无标度异构网络中的层次化P2P覆盖网设计[J].计算机工程与应用,2011,47(25):89-92,4.基金项目
湖北省教育厅科技研究项目(No.B20101101). （No.B20101101）
