车载无线自组织网络性能优化策略  

Research on Performance Optimization Strategy of Vehicular Wireless Ad Hoc Network

作　　者：陈常晖[1] CHEN Chang-hui(Fujian Chuanzheng Communications Institute of General Aviation Industry,Fuzhou 350007,China)

机构地区：[1]福建船政交通职业学院通用航空产业学院,福建福州350007

出　　处：《长春师范大学学报》2020年第10期54-60,共7页Journal of Changchun Normal University

摘　　要：在对VANETs性能与结构特点深入分析的基础上,提出一种基于多跳传输的车载无线自组织网络性能优化策略。建立针对车载网络的双向时隙分配方案,合理划分时隙数据集,避免节点接入冲突的产生;在路由路径选择方面,基于当前车辆节点的位置信息和速度信息,优化路由算法并确定最佳跳数,在保证车辆有效安全距离前提下提高多跳动态信息传输的效率与吞吐量,改善车载无线网络的基础性能。仿真结果显示,优化方案能够更好地控制网络时延和交通信息传输、共享时的丢包率,通信信道的利用率也优于传统方法。Based on the in-depth analysis of the performance and structure of VANETs,a performance optimization strategy of vehicular wireless ad hoc network based on multi hop transmission is proposed.A bi-directional time slot allocation scheme for vehicle wireless network is established to reasonably divide the time slot data set and avoid the generation of node access conflict.In the aspect of routing path selection,based on the location and speed information of current vehicle nodes,the routing algorithm is optimized and the optimal number of hops is determined,so as to improve the efficiency and throughput of multi hop dynamic information transmission under the premise of ensuring the effective and safe distance of vehicles,and to improve the basic performance of wireless network.The simulation results show that the proposed optimization scheme can better control the packet loss rate of network delay and traffic information transmission sharing,and the utilization level of communication channel is also better than the traditional optimization method.

关 键 词：车载 无线自组织 多跳传输 吞吐量 网络时延 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]