移动自组网中兼顾通信可靠性和链路长度的可信路由协议

Trusted routing protocol under consideration with communication reliability and path length in mobile Ad-hoc network

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信誉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.该模型借鉴人类信任关系建立模式,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,在陌生节点间建立信任关系,从而实现了一种兼顾通信可靠性和链路长度的可信路由协议.仿真结果表明,提出的信任路由模型较传统的动态源路由协议协议具有较高的抵抗恶意节点存在的能力,并研究了通信半径和移动速度等参数对模型效率的影响.

Different from most of past routing algorithms which only considered shortest path first, or evaluated the trust level solely on the forwarding behavior, or were dependent on reputation recommendation mechanism, we proposed a novel subjective trusted routing model under consideration to both communication reliability and path length. Inspired by the establishment pattern of trust relationships in human life, we introduce the concept of attribute similarity to inherently bind neighbor selection, trust evaluation, packet forwarding, and other routing processes. Simulations show that the proposed trust routing model behaves better than dynamic source routing protocol on defending against malicious nodes. Also we provided some numerical results about the impacts of different communication ranges, moving speeds and node numbers on performance.