移动自组网的主观信任建模与仿真

不同于以往只考虑最短路径或只依靠转发行为评价信任或基于推荐机制的传统路由算法,提出了一种兼顾通信可靠性和路径长度的主观信任路由模型.通过引入属性相似度概念将邻居选择、信任评估、数据转发等路由环节紧密相连,进一步建立一种新的动态包转发规则,并给出了一种计算属性相似度的推荐方法.实验结果表明主观信任路由模型较传统的DSR(...

Modeling and Simulating Subjective Trust in MANETs

Different from most the past routing algorithms only considering the shortest path first,or evaluating the trust level solely on the forwarding behavior,or depending on recommendation-based trust mechanism,we propose a novel subjective trust routing model under consideration to both communication reliability and path length.We introduce the concept of attribute similarity to inherently bind neighbor selection,trust evaluation,packet forwarding,and other routing processes.Based on the similarity degree,we put forward a new forwarding behavior.We give a recommended method to calculate the similarity degree between attributes.Simulations show that the routing scheme behaves better than Dynamic Source Routing (DSR) protocol and previous trust-based routing protocols on standing against the blackhole attack and the on-off attack,and meanwhile is not affected by the slander attack.