电信科学 ›› 2012, Vol. 28 ›› Issue (12): 135-141.doi: 10.3969/j.issn.1000-0801.2012.12.021

• 专题 • 上一篇    下一篇

一种P2P文件共享系统的QoS评价模型

吴吉义1,2,3,张启飞1,王桐4,陈德人1,章剑林2   

  1. 1 浙江大学计算机科学与技术学院 杭州 310027
    2 杭州师范大学电子商务与信息安全重点实验室 杭州 310036
    3 广东省电子商务市场应用技术重点实验室 广州 510320
    4 哈尔滨工程大学信息与通信工程学院 哈尔滨 150001
  • 发布日期:2017-02-07
  • 基金资助:
    国家自然科学基金资助项目;国家自然科学基金资助项目;浙江省自然科学基金资助项目;浙江省自然科学基金资助项目;广东省电子商务市场应用技术重点实验室开放基金资助项目

A QoS Evaluation Model for P2P File-Sharing Applications

Jiyi Wu1,2,3,Qifei Zhang1,Tong Wang4,Deren Chen1,Jianlin Zhang2   

  1. 1 School of Computer Science and Technology,Zhejiang University,Hangzhou 310027,China
    2 Key Lab of E-Business and Information Security,Hangzhou Normal University,Hangzhou 310036,China
    3 Key Lab of E-business Market Application Technology of Guangdong Province,Guangzhou 510320,China
    4 College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China
  • Published:2017-02-07

摘要:

在分析了P2P分层体系结构的基础上,结合P2P文件共享系统应用提出了Overlay Network 层和应用层的QoS评价模型,并进一步形成了整体QoS评价模型。仿真实验分析了节点的加入和退出、节点的能力和上传策略、节点缓存大小和节点缓存策略等因素对QoS的影响。另外,文件的热度也是影响系统QoS的一个重要因素。

关键词: peer-to-peer, 文件共享, 服务质量, 评价模型

Abstract:

Based on the analysis of P2P hierarchical architecture,QoS evaluation model for overlay network layer and application layer were proposed combined with P2P File-Sharing system applications,and the overall QoS evaluation model was further formed.The simulation analyzed how the factors impact on the QoS,including the joining and leaving of nodes,node capabilities and uploading strategy,node,cache size,and node caching strategies and other.In addition,the heat of the file is also an important factor to influence system QoS.

Key words: peer-to-peer, file-sharing, quality of service, evaluation model

No Suggested Reading articles found!