基于模糊逻辑的VANET路由协议算法研究  

A Routing Protocol Based on Fuzzy Logic in Vehicular ad hoc Networks

作　　者：廖小飞[1,2] 公维涛 周凡 李德敏[1,2] LIAO Xiao-fei;GONG Wei-tao;ZHOU Fan;LI De-min(College of Information Science and Technology Donghua University,Shanghai 201620,China;Engineering Research Center of Digitized Textile&Fashion Technology,Ministry of Education,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学信息科学与技术学院,上海201620 [2]数字化纺织服装技术教育部工程研究中心,上海201620

出　　处：《计算机仿真》2019年第11期135-140,共6页Computer Simulation

基　　金：国家自然科学基金资助项目(No.71171045);中央高校基本科研业务费专项基金资助项目(15D110422)

摘　　要：随着多媒体等实时业务应用到车载自组织网络中,为了保障多媒体等实时业务的传输质量,车载网络中多跳路由协议具有一定的研究意义。综合考虑到实时业务及车载自组织网络的特点,提出了一种路由算法FL-GPSR。该算法将链路可用带宽、节点中心度、节点稳定度这三个指标运用模糊逻辑系统进行处理,再利用去模糊化处理后的数值和节点到目的节点距离来选择最优转发节点,从而选择最佳路由路径。最后利用NS2对协议进行仿真,结果表明FL-GPSR路由协议相比PFQ-AODV、GPSR等,在较低路由开销的同时,能够使网络获得更高可靠性、有效性,更低延时性。With the business of multimedia applied to Vehicular ad hoc network, multiple hops routing protocol which transmits multimedia real-time business has a significance of research. Considering the characteristics of the real-time business and the VANET, a routing algorithm based on fuzzy logic theory, FL-GPSR, is proposed.The protocol uses fuzzy logic to evaluate whether a vehicle node is a good intermediate node or not by considering the following factors: link available bandwidth, node centrality, node stability, distance of node to the destination node. Then the proposed protocol selects next hop according to the evaluation results of fuzzy logic, node with highest priority will be selected as next hop. The simulations of protocol by NS2 illustrate that the proposed protocol has a lower routing overhead than PFQ-AODV, GPSR. It can acquire higher reliability, validity, lower latency of route path.

关 键 词：车载自组织网 可用带宽 节点中心度 节点稳定度 模糊逻辑 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]