摘要： P2P网络是一个自组织、分布式的系统,没有中央职权和基础设施,正因为其参与的自发性,使得其网络中的资源的可用性有极高的变数和不可预知性。文章借助经济学中博弈论对P2P网络中的参与者之间的交互行为进行分析,提出一种基于差异服务质量的激励方案来改善该系统的性能。

关键词: 对等网, 博弈论, 纳什均衡, 服务质量

Abstract: Peer-to-peer (P2P) networks are self-organizing, distributed systems, with no centralized authority or infrastructure. Because of thevoluntary participation, the availability of resources in a P2P system can be highly variable and unpredictable. This paper uses ideas from gametheory to study the interaction of peers, and proposes a differential service-based incentive scheme to improve the system’s performance.

中图分类号: 

• TP393.02