基于稳定性的认知Ad Hoc网络路由协议  

Stability-based routing protocol for cognitive radio Ad Hoc networks

作　　者：李泽扬[1] 陈前斌[1] 唐伦[1] 龚璞[1] 

机构地区：[1]重庆邮电大学移动通信技术重点实验室,重庆400065

出　　处：《计算机工程与设计》2013年第3期783-786,924,共5页Computer Engineering and Design

基　　金：国家自然科学基金项目(61171111);重庆市自然科学基金项目(CSTC2011jjA40046);重庆市教委科学技术研究基金项目(KJ120524)

摘　　要：针对认知无线电Ad Hoc网络中各个节点可用频谱的多样性、时变性和差异性的问题,传统路由协议不能适用于认知无线电Ad Hoc网络,提出了一种基于稳定性的路由协议。该协议综合考虑认知无线电Ad Hoc网络特性,通过计算每个节点的稳定性并引入分集传输,进行传输模式选择和信道选择,利用包括路径稳定性、路径跳数、路径信道切换次数的路由尺度进行路径选择。仿真分析表明,该协议能减少路径信道切换次数,提高路径稳定性和路径建立成功概率。In cognitive radio Ad Hoc networks, since the available spectrums of each node have properties which are various, time variable and different, traditional routing protocol is not suitable for cognitive radio Ad Hoc networks. A stabilitybased routing protocol （SBRP） is proposed. According to the characteristics of cognitive radio Ad Hoc network, SBRP calculates the stability of every node and introduces diversity transmission for transmission mode and channel selection. Moreover, SBRP utili zes routing metric which includes path stability, path hop counts and path channel switching times for path selection. Simulation results show that the path channel switching times of SBRP is reduced while the path stability of SBRP and the path build proba bility of success of SBRP are increased.

关 键 词：认知无线电 AD HOC 路由协议 稳定性 选择 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]