摘要
针对P2P系统中的搭便车问题,提出了一种基于混合策略博弈的激励机制。将信誉值作为激励节点贡献资源和提供服务的基础,节点是否能获得服务也是与节点当前信誉值成比例的,节点只能通过提供服务来增加其信誉值。同时节点是否响应服务请求是以某一概率来进行的,通过调节该概率来有效的激励节点提供服务。仿真实验表明,节点在经过一段时间的博弈之后,其响应次数和请求次数基本相等,提高了节点在系统中的参与度。
In order to solve free rider in peer-to-peer system, this paper proposed a novel incentive based on mixed-strategy game. Reputation is used as a mechanism to incentivize nodes to share resources and provide services to others. The probability of a node obtaining service is directly proportional to its current reputation, and the response to request is related to the reputation. A peer selects the action to response with probability P and by control P to incentivize node to provide services. The simulation result shows that the numbers of response are almost equal to the numbers of request, the mechanism incentive every peer to share resources effectively.
出处
《电子技术应用》
北大核心
2010年第6期127-129,共3页
Application of Electronic Technique
基金
国家自然科学基金项目(60873082)
关键词
混合战略博弈
P2P
激励
信誉
mixed strategy game
peer-to-peer
incentives
reputation
