P2P文件传输中网络资源搜索策略改进

Improvement on the Search Strategy of Network Resources during P2P File Transfering

资源搜索和共享是P2P网络中重要的应用,如何进行高效资源的查询是提高系统效率、增强系统可扩展性的很重要的技术问题。文中介绍对等网络的基本特征和一些主要改进查询策略,同时分析了这些策略存在的问题,并在此基础上提出了一种基于资源路由表的缓存策略,最后对此方法进行模拟仿真,证明该策略可以有效地提高非结构化文件传输系统的效率及可扩展性。

Resource search and share are the important applications of peer-to-peer networks.How to efficiently query the resources are the key technical problem to enhance the system efficiency and boost the system scalability.In this paper,basic characteristics of the P2P and some main improved query strategies are presented,and their deficiencies are analyzed.And then,a new strategy--Caching Strategy based on resource routing table is provided.At last,the simulation is given,and the result shows that this strategy can effectively improve the efficiency and scalability of the unstructured file transfer system.