摘要
由于P2P网络节点的匿名性和贡献资源的自愿性,绝大多数节点缺乏提供服务的积极性,从而引发了P2P网络中的搭便车问题。在分析搭便车问题的基础上,全面介绍了基于微支付、直接互惠和信誉模型等典型激励机制,指出了这些模型中分别存在的隐藏信息,信息不对称和共谋等问题。根据机制可靠性,扩展性和复杂度等衡量因素对各种激励机制进行了比较分析,讨论了代价与效用量化比较和通用激励框架等激励机制未来研究的趋势。
Due to the anonymous participation and voluntary resource contributions in P2P systems, the majority of peers are lack of eagerness to contribute resources or provide services to communities; this leads to the prevalence of ＂free-riding＂. Based on the analysis of free-riding, incentive mechanisms that have been proposed for P2P networks including micro- payment, direct reciprocity and reputation based models were surveyed and problems such as hidden information, information asymmetry and collusive behavior were pointed out. Main incentive mechanisms were compared in terms of reliability, scalability and complexity. Some remaining issues like quantization comparison of cost and utility as well as universal framework for further research were discussed.
出处
《计算机应用》
CSCD
北大核心
2007年第9期2202-2205,共4页
journal of Computer Applications
关键词
P2P
激励机制
博弈论
微支付
信誉
P2P
incentive mechanism
game theory
micro-payment
reputation
