对等网络中资源共享引力的拓扑优化算法

发布时间：2018-01-26 02:30

本文关键词： 对等网络共享引力多维信任云虚拟距离拓扑优化　出处：《小型微型计算机系统》2017年01期 　论文类型：期刊论文

【摘要】：针对现有对等网络拓扑优化算法大多基于理想的网络环境,缺乏对节点内在因素和外部环境的综合考虑,给出一种对等网络中资源共享引力的拓扑优化算法.它通过节点共享的资源量、资源的真实性评价、资源需求度等内在因素和节点间虚拟距离的外部环境来构建节点的资源共享引力,在此基础上对非结构化对等网络的拓扑结构进行优化.分析与实验结果表明该拓扑优化算法能将资源共享引力低的节点排挤到网络边缘,降低其对网络整体性能的影响,并能有效地提高对等网络的资源搜索效率.
[Abstract]:For the existing P2P topology optimization algorithms are mostly based on the ideal network environment, there is a lack of comprehensive consideration of the internal factors and external environment of the node. This paper presents a topology optimization algorithm for resource sharing gravity in peer-to-peer networks, which evaluates the authenticity of resources through the amount of resources shared by nodes. The internal factors such as resource demand degree and the external environment of virtual distance between nodes are used to construct the resource sharing attraction of nodes. On this basis, the topology of unstructured peer-to-peer networks is optimized. The analysis and experimental results show that the proposed topology optimization algorithm can exclude nodes with low resource sharing gravity to the edge of the network. It can reduce the impact on the overall performance of the network and effectively improve the resource search efficiency of the peer-to-peer network.
【作者单位】：湖南人文科技学院信息学院;湖南师范大学物理与信息科学学院;
【基金】：湖南省教育厅优秀青年科研项目(15B125)资助湖南省计算机应用技术重点建设学科项目(湘教发[2011]76号)资助
【分类号】：TP393.02
【正文快照】： 1引言近十年来,P2P(Peer-to-Peer)技术发展迅速,P2P网络得到了网络与通信领域学者与业界的普遍关注[1].P2P网络本质上是建立在Internet上的一种分布式覆盖网络(OverlayNetw ork),其目标是充分利用Internet环境中各种可能的端系统进行大规模的协作工作和资源共享,并具有容错性

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