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计算机工程 ›› 2010, Vol. 36 ›› Issue (22): 111-112. doi: 10.3969/j.issn.1000-3428.2010.22.039

• 网络与通信 • 上一篇    下一篇

P2P网络中Free-rider的平衡机制

李玉玲a,刘玉华a,许凯华b,潘华强a   

  1. (华中师范大学 a. 计算机科学系;b. 物理科学与技术学院,武汉 430079)
  • 出版日期:2010-11-20 发布日期:2010-11-18
  • 作者简介:李玉玲(1984-),女,硕士研究生,主研方向:P2P网络;刘玉华,教授、博士生导师;许凯华,教授;潘华强,硕士研究生
  • 基金资助:

    国家自然科学基金资助项目“重叠网络中避免集散节点形成的拓扑控制机制研究”(60673163)

Balance Mechanism on Free-rider in P2P Network

LI Yu-linga, LIU Yu-huaa, XU Kai-huab, PAN Hua-qianga   

  1. (a. Department of Computer Science; b. College of Physical Science and Technology, Huazhong Normal University, Wuhan 430079, China)
  • Online:2010-11-20 Published:2010-11-18

摘要:

针对P2P网络中出现的free-rider现象,提出一种控制点位于服务提供节点上的平衡机制。该机制充分考虑P2P网络拓扑结构不一致的问题,并允许一定数量的free-rider节点存在。实验证明,该机制既能有效利用网络资源,提高交易的成功率,又能对严重的free-rider行为进行抑制。

关键词: P2P网络, 搭便车, 效用值, 平衡机制

Abstract:

Aiming at “free-rider” phenomenon in P2P network, a new balance mechanism in which the control point is on the service providers nodes is proposed. This mechanism promises the existence of free-riders in certain degree and the inconsistency of topology is considered fully. Experimental results prove that this balance mechanism is able to use network resources effectively, and also can restraint the serious free-rider behavior.

Key words: P2P network, free-rider, utility value, balance mechanism

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