基于反馈的P2P资源定位策略  

Strategy of peer-to-peer resource locating based on feedback

作　　者：刘柯萍[1] 危韧勇[1] 李章华[1] 

机构地区：[1]中南大学信息科学与工程学院,长沙410083

出　　处：《计算机应用研究》2007年第12期345-347,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(50405034);湖南省自然科学基金资助项目(03JJY3111)

摘　　要：提出了一种非结构化P2P网络资源定位的新方法,包括基于反馈的查询转发策略和扩散控制算法。基于反馈的查询转发策略利用已执行查询的反馈进行信息搜索,同时通过在高转发成功率的节点上复制副本来提高搜索命中率;扩散控制算法对消息数量进行控制,使得网络带宽不被过度消耗,减轻网络拥塞。实验采用Java语言模拟整个策略。结果表明该方法具有高效性、可靠性,值得在目前的P2P网络中推广。This paper proposed a new method to solve the problem of resource locating in unstructured P2P networks. It included the inquiry repeater strategy based on feedback and the diffusing control algorithm, The inquiry repeater strategy based on feedback implemented information search by the executed inquiry feedback, and enhanced the search hit probability by duplicating duplicates in high repeater success ratio node. The message quantity was controled by the diffusing control algorithm in order to cause the network band width not too excessively to consume and reduce the network jam. The experiment used the Java language to simulate the entire strategy. The experimental result indicats that this method is effective, reliable, and is worth to promote in the present P2P networks.

关 键 词：对等网络 资源定位 信息搜索 复制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]