混合式结构化P2P中DNA节点选取研究  

Selection Policy of DNA Nodes in hybrid structural P2P network

作　　者：刘泷[1] 张顺颐[1] 李君[1] 

机构地区：[1]南京邮电大学信息网络技术研究所

出　　处：《现代电信科技》2008年第9期23-27,共5页Modern Science & Technology of Telecommunications

基　　金：国家高技术研究发展计划(863计划)(2006AA01Z232)

摘　　要：P2P技术越来越得到广泛应用,对互联网产生了深远影响,是继Web浏览器之后互联网信息传递的又一次革命。两层混合式结构化P2P网络继承了第三代P2P软件的高效性和容错性,同时具有较好的自组织性和分布性等结构化特性。DNA节点的选取策略伴随整个网络的通信过程而存在和实施。通过比较超级节点和DNA节点,并运用数据结构的方式,将混合式P2P技术与结构化P2P技术相融合,进而提出DNA节点选取策略,并进行了实验分析。The wide-spread of P2P technology makes in-depth impact on Internet. It is another revolution of internet information transmission after web-browser. Two-level hybrid structural P2P networking inherits high performance and fault tolerance from the third generation P2P systems. Meanwhile it has good structural properties like self-organization, distribution and so on. The selection rules of DNA nodes depend on and are operated through the whole process of network communication. This article compares DNA nodes with super nodes, and integrates hybrid P2P technology with structural P2P technology using data structure, at last the selection rules of DNA nodes are proposed and verified.

关 键 词：结构化 效用值 节点标示 DNA 备用DNA 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术] TP393.02[自动化与计算机技术—计算机科学与技术]