P2P中应用平衡机制抑制搭便车行为的研究

计算机科学 ›› 2013, Vol. 40 ›› Issue (7): 36-39.

P2P中应用平衡机制抑制搭便车行为的研究

刘建辉,王君,冀常鹏,汪洋

辽宁工程技术大学电子与信息工程学院葫芦岛125105;辽宁工程技术大学研究生学院葫芦岛125105;辽宁工程技术大学电子与信息工程学院葫芦岛125105;辽宁工程技术大学研究生学院葫芦岛125105

出版日期:2018-11-16 发布日期:2018-11-16

Balanced Algorithm to Suppress Free-riding in P2P Network

LIU Jian-hui,WANG Jun,JI Chang-peng and WANG Yang

Online:2018-11-16 Published:2018-11-16

摘要/Abstract

摘要： 针对近年来P2P网络中存在大量“搭便车”节点的问题,在判断一个节点是否是搭便车节点时提出一种基于平衡机制的算法,其不仅考虑节点自身的理性行为方面,还考虑节点所处的物理环境特征,并采用降低搭便车节点下载资源速度的方法来抑制其搭便车行为。仿真实验表明,该平衡机制算法可以有效降低网络中搭便车节点的数量,并提高网络的下载成功率,同时增强网络的公平性、稳定性,达到抑制搭便车行为的目的。

关键词: P2P网络,搭便车,效益值,公平指标中图法分类号TP393文献标识码A

Abstract: With the rapid development of P2P network in recent years,there are a lot of ‘free-riding’ node problems．A kind of balanced algorithm was proposed to determine whether a node is free-riding or not．This algorithm not only takes the rational behavior of node itself into consideration but even also the characteristics of the physical environment where nodes exist．And it slows down the speed of downloading resources of a node to suppress the free-riding beha-vior．The simulation experiment shows that this algorithm can inhibit the number of free-riding nodes effectively,but also improve the download success rate of the network．It enhances the fairness and stability of network．So finally it achieves the purpose of suppressing the fee-riding.

Key words: P2P network,Free-riding,Effectiveness values,Fairness index

刘建辉,王君,冀常鹏,汪洋. P2P中应用平衡机制抑制搭便车行为的研究[J]. 计算机科学, 2013, 40(7): 36-39. https://doi.org/

LIU Jian-hui,WANG Jun,JI Chang-peng and WANG Yang. Balanced Algorithm to Suppress Free-riding in P2P Network[J]. Computer Science, 2013, 40(7): 36-39. https://doi.org/

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