一种P2P文件共享系统中的激励机制  

Incentive mechanism in peer-to-peer file sharing system

作　　者：庄雷[1] 常玉存[1] 董西广[1] 

机构地区：[1]郑州大学信息工程学院,郑州450052

出　　处：《计算机应用研究》2009年第1期266-268,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(69873040);河南省教育厅基础研究项目(2003520256)

摘　　要：提出了一种用于文件共享系统的激励机制,将节点享受服务的能力和提供服务的能力进行区分,贡献节点享有更高的服务优先级,而搭便车节点受到惩罚。仿真实验表明,该激励机制充分体现了公平性原则,同时大大提高了下载成功率。This paper presented a new incentive mechanism which could be applied to the file sharing systems, the ablity of the user to enjoy service was distinguished from the ability to provide service, contributing nodes had more preference to get services. In contrast, free-riders were punishied. The simulation results show that the incentive mechanism fully embodies the fairness principles, meanwhile greatly improves the success rate of downloading.

关 键 词：对等网络 搭便车 污染 激励机制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]