摘要： 分析基于贝叶斯方法的信任评估过程，针对其不能较好反映信任评估的一些重要属性的缺陷，对其信任更新过程进行改进与优化，增强贝叶斯信任评估方法的健壮性和有效性。提出基于贝叶斯方法的信任评估模型和安全路由框架，并实现一种基于AODV的安全可信路由方案TBAODV。仿真实验验证了该方案的有效性。

关键词: Ad hoc网络, AODV协议, 安全路由, 信任, 贝叶斯方法

Abstract: This paper analyses the trust evaluation process based on Bayesian approach, aiming at the deficiency that it can’t reflect some important attribute of trust evaluation preferably. It improves its trust updating process, boosts up its haleness and validity, and proposes a trust evaluating model and secure routing framework based on the modified Bayesian approach. The paper implements a trust-based routing protocol based on AODV protocol. Simulational experiment proves the validity of the proposed scheme.

Key words: Ad hoc networks, AODV protocol, secure routing, trust, Bayesian approach

中图分类号: 

• TP309