Gnutella环境下基于节点逻辑度的资源定位方法  

A RESOURCE LOCATION MECHANISM BASED ON LOGICAL DEGREE OF PEERS IN GNUTELLA NETWORK

作　　者：吴明生[1] 覃少华[1] 肖黎黎[1] 孙桂刚[1] 

机构地区：[1]广西师范大学计算机科学与信息工程学院,广西桂林541004

出　　处：《计算机应用与软件》2009年第7期90-93,共4页Computer Applications and Software

基　　金：广西教育厅项目(桂教科研[2005]47号)

摘　　要：在Gnutella网络中如何进行资源定位是提高网络效率、增强网络可扩展性的重要问题。在已有研究的基础上提出一种基于节点逻辑度的资源定位方法,加入节点基于当前Gnutella网络中节点的逻辑度选择要建立链接的节点,请求节点通过所构建的逻辑结构来定位资源。仿真实验结果表明该方法能有效地降低Gnutella网络的通信负载,减少冗余消息,提高Gnutella网络的可扩展性。How to locate resources is an important issue to improve network performance and enhance network scalability in Gnutella network. This paper presents a resource location mechanism based on logical degree of peers on the basis of existent study of Gnutella search mechanism. The joining peer chooses peers to establish the links with according to the logical degree of peers in current Gnutella network, and the query peer locates resource through the logical structure constructed in Gnutella network. The simulation result shows that our mechanism can efficiently depress the traffic overhead of Gnutella network, reduce redundancy messages, and improve its scalability.

关 键 词：GNUTELLA网络 幂规律 小世界 资源定位 基于度的方法 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] TP393.092[自动化与计算机技术—计算机科学与技术]