自私性移动P2P网络中高效的资源搜索机制

发布时间：2018-04-10 01:13

本文选题：移动PP网络　切入点：协同合作度　出处：《系统仿真学报》2017年05期

【摘要】：由于移动P2P(Peer-to-Peer)网络中节点自身状态等因素的影响,节点往往表现出自私性和资源偏好性,这极大地影响了网络系统的资源搜索效率。针对该问题,给出了一种移动P2P网络中基于节点协同合作度的资源搜索机制。该搜索机制通过综合评价节点的信息转发率、综合相似度与核心度,选择协同合作度高的节点作为中继节点进行信息转发;同时,通过分析节点的主观转发率以建立其激励机制,激励节点参与资源搜索。分析与实验结果表明该搜索机制能够有效地提高整个系统的资源搜索成功率,降低其平均搜索长度,具有较好的查询性能。
[Abstract]:Due to the influence of some factors such as the state of the nodes in the P2P Peer-to-Peer network, the nodes often show selfishness and resource preference, which greatly affects the efficiency of resource search in the network system.In order to solve this problem, a resource search mechanism based on the degree of cooperation between nodes in mobile P2P networks is proposed.By synthetically evaluating the information forwarding rate, synthesizing the similarity and the core degree, the search mechanism selects the node with high cooperative cooperation degree as the relay node to forward the information; at the same time,By analyzing the subjective forwarding rate of nodes, the incentive mechanism is established to encourage nodes to participate in resource search.The results of analysis and experiments show that the search mechanism can effectively improve the success rate of resource search and reduce the average search length of the system, and it has better query performance.
【作者单位】：湖南人文科技学院信息学院;长沙师范学院电子信息工程系;
【基金】：国家自然科学基金(61572191,61571188) 湖南省教育厅优秀青年科研项目(15B125) 湖南省计算机应用技术重点建设学科(湘教发[2011]76号)
【分类号】：TP393.02

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