认知Ad-Hoc网络基于信道信息的路由算法

摘要

由于认知网络中信道具有动态时变特性,路由选择和信道分配成为认知Ad-Hoc网络亟待解决的问题。为此提出一种基于信道信息的改进路由算法,结合节点的信道共用度和最小条数作为路由度量,通过选取较稳定的节点,增强链路的稳定性。仿真结果表明,对于信道变化波动较大的环境,改进的路由算法具有很好的路径稳定性和链路修复能力。%Considering the dynamic time-varying characteristic of cognitive network channels,the issues of routing selection and channel allocation have to be addressed in cognitive Ad-Hoc networks.So an improved routing algorithm based on channel information is proposed,which combines the common channel number and minimum hop number of the node as routing measure,and improves the link stability by selecting relatively stable node.The simulation result shows the good path stability and link recovering capability of the improved algorithm for environment with large channel variation.