P2P文件污染的建模与仿真分析  

The Modeling and Simulation of P2P File Pollution

作　　者：左敏[1] 李建华[1] 蒋兴浩[1] 

机构地区：[1]上海交通大学电子工程系,上海200240

出　　处：《上海交通大学学报》2008年第2期239-244,共6页Journal of Shanghai Jiaotong University

基　　金：国家高技术研究发展计划(863)资助项目(2003AA142160)

摘　　要：用状态转移模型描述P2P文件共享网络上的文件污染现象以及污染散播过程的时间特性.模型中综合用户慷慨度、警觉性、版本选择策略以及污染者资源控制能力等多种因素的影响作用.仿真实验揭示了污染散播的规律,并提出了污染防治措施.This paper constructed a state transfer model to describe the file pollution phenomenon on popular P2P file-sharing networks, and analyzed the time-dynamic characteristics of file pollution process. This model captures the influence of several important factors such as users＇ generosity, awareness, version-selection policy, and the resource constraints of polluters. Simulation results were presented to illustrate the rules of P2P file pollution, and several possible countermeasures were proposed according to those rules

关 键 词：文件污染 内容安全 对等网 文件共享 传播模型 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]