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中国科学院大学学报 ›› 2008, Vol. 25 ›› Issue (2): 197-203.DOI: 10.7523/j.issn.2095-6134.2008.2.009

• 论文 • 上一篇    下一篇

P2P系统中基于信誉感知的超级节点选择算法研究

刘玉枚 杨寿保 陈万明 郭磊涛 韦冬   

  1. 1中国科学技术大学计算机科学与技术系,合肥230026;

    2中国科学技术大学自动化系,合肥230026

  • 收稿日期:1900-01-01 修回日期:1900-01-01 发布日期:2008-03-15

The research of the Reputation-Aware SuperN-ode Selection Algorithm in P2Psystem

LIUYuMei ;YANGShouBao1; CHENWanMing2; GUOLeiTao; WEIDong   

  1. 1DepartmentofComputerScience,UniversityofScienceandTechnologyofChina,Hefei230026,China;

    2DepartmentofAutomation,UniversityofScienceandTechnologyofChina,Hefei230026,China

  • Received:1900-01-01 Revised:1900-01-01 Published:2008-03-15

摘要: 对层次式P2P系统中恶意超级节点频繁离开网络导致系统不稳定甚至崩溃的问题,提出一种新的基于信誉的超级节点选择算法.建立节点基于历史交换回馈信息的信誉评估算法,以信誉评估为基础,构建信誉感知的超级节点选择算法,选择信誉高的节点为超级节点.理论分析和仿真结果表明,该算法有效地提高了系统的稳定性.

关键词: 对等网络, 超级节点, 信誉感知超级节点选择算法, 信誉, 恶意节点

Abstract: IntheP2PHybridStructure,itmakesthesystem fluctuate,evenmakesthesystem collapsewhen
hostilesuperNodeleavesthesystem frequently.Therefore,weproposedanew ReputationAwareSuperNode SelectionAlgorithm tomakethesystem stable.Itbuiltthereputationmodelwhichwasbasedonthehistory interactionfeedback, andthenbuiltthereputationawaresuperNodeselectionalgorithm, selectingthehigh
reputationnodeasthesuperNode.Simulationandanalysisshowthatwhenitselectedhighreputationnodefor SuperNode,thefrequencythatthesuperNodeleavesthesystem isreducedandthesystem’sstabilizationis improved.

Key words: P2P, superNode, RASSA, reputation, hostilesuperNode

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