一种基于信任度推荐的P2P-Grid模型

P2P-Grid reference model based on trust value

为解决P2P与Grid混合模式下,寻找可信任的服务Peer的问题,设计了一种P2P-Grid环境下基于信任度推荐的P2P-Grid模型。通过自适应的方式构建超级节点,完成对网络的逻辑划分以及推荐信任度的传递,避免了网络瓶颈的出现。网格服务的申请者通过超级节点获得全局信任度,然后计算其最终信任度。将计算任务交予最可信的节点去完成,保证了服务质量。分析及仿真实验说明,该P2P-Grid模型可以简单有效地解决P2P-Grid中的信任问题,具有良好的工程可行性。

A P2P-Grid model based on reference of trust value is designed in P2P-Grid environment in order to solve how to find a trustworthy peer provided service in mixed P2P and Grid （P2P＆Grid） pattern. The outcome of neck in network is avoided by constructing super node, partitioning the network logically and transmitting the trust value in adaptive mode. The applicant for grid service gets global trust value referenced form super node and computes final trust value, and then, the most trustworthy peers would complete the computation so as to ensure quality of service. Analysis and simulation experiments show that P2P-Grid model based on trust value is able to solve trust problems in P2P-Grid easily and effectively and this model is of favorable feasibility.