关键词: 移动adhoc网络, 安全路由协议, 证据, 信任度, 仿真

Abstract: Reviewing the defects of existing ad hoc network route protocols, a new method searching trust routing for mobile ad hoc network was presented on the basis of the peculiarity of ad hoc network. The method was applied to DSR protocol approved by IETF. NS2 simulation experiment showed that the method is feasible and effective. Trust probability was suggested to describe the probability that a node may be acted as next hop, with an arithmetic given to calculate the trust probability. It's an empirical proof that how a rout designer trusted an evidence is dependent not only on recommendations from third parties but more important on his/her own experience. A trust model was thus formalized, which is available to manage the trust relation between strangers. The model can deal with incomplete and uncertain evidence so as to make up the defects of existing ad hoc route protocol.