Abstract: The routing behavior of Mobile Ad Hoc Network (MANET)is dependent on the cooperation of autonomous mobile nodes under the open environment. Based on the analysis of the MANET route trusting relationship and the characteristic,this article indicated the binomial event posterior probability of the node forward experience that is the foundation for the node route trust measure on. Using probabilistic model, the subjective route trust measure and mathematics estimate problem can be solved, and the route trusting relationship quantification and the forecast can be realined. Taking this as the foundation, the article transformed the MANET path trust as the trust synthesis of route participation node,and thus held the problem confiding in finding the solution that end-to-end routing trust changes into maximal spanning tree,and realized trust measurement and choice in routing.

Key words: Mobile Ad Hoc network, Routing protocol, Trust management model, Trust measurement