P2P网络中一种分布式信任机制的研究

Research on a Distributed Trust Mechanism in P2P Network

随着P2P(Peer-to-Peer)网络规模的不断壮大以及用户种类的不断增加,网络中节点的自私行为可能导致网络产生严重的问题。因此,提出一种有效的信任机制来鼓励节点的合作行为成为一个关键问题。本文提出一种分布式信任机制以提高系统的整体性能,并通过仿真实验测试了该机制对于"搭便车者"的影响,最后对文章进行了总结及对下一步研究的讨论。

With the development of P2P （Peer-to-Peer） networks＇ scale and the increasing types of users,the selfish behaviors of peers in the network could lead to serious problems. Consequently,presenting an effectively trust mechanism to encourage cooperative behavior becomes one of the key problems. In this paper,a distributed trust mechanism is proposed to improve the whole performance of the P2P network. The impact of free rider is evaluated using simulations and the last part of the article is the conclusion and the discussion on future research.