计算机工程2019，Vol.45Issue(2)：7-12,6.DOI:10.19678/j.issn.1000-3428.0049361
基于路网与QoS模型的GPSR改进协议
GPSR Improvement Protocol Based on Road Network and QoS Model
摘要
Abstract
Aiming at the problems of traditional Greedy Perimeter Stateless Routing (GPSR) protocol, such as low link quality, high effects of delivery rate, and poor adaptability of low node density under urban traffic conditions, an LRGR routing protocol is proposed. The road network model is established by using information such as road location and intersection location, and the Quality of Service (QoS) assessment optimization path is introduced, and the carrying and forwarding mechanism is given. The actual road electronic map is selected as the experimental simulation scene, and the GPSR protocol and LRGR protocol are compared and simulated at different node densities or speeds by SUMO and NS3 simulation tools. Results show that in actual traffic scenes, vehicle density and speed have a great impact on the delivery rate, end-to-end delay and end-to-end hop number of routing protocols. Especially in low density and high speed circumstances, the performance of the protocols decreases significantly. Under various vehicle density and speed conditions, LRGR protocol has 20％ ～ 35％ higher delivery rate than GPSR protocol, 5 ms ～ 10 ms lower end-to-end delay, 2 hops ～ 4 hops less end-to-end hops, and it can adapt to urban VAENT.关键词
城市交通/车载自组织网络/贪婪周边无状态路由/路网模型/服务质量模型Key words
urban traffic/Vehicular Ad-Hoc Network (VANET)/Greedy Perimeter Stateless Routing (GPSR)/road network model/Quality of Service (QoS) model分类
信息技术与安全科学引用本文复制引用
高田翔,石英,刘子伟,伍龙昶..基于路网与QoS模型的GPSR改进协议[J].计算机工程,2019,45(2):7-12,6.基金项目
江苏省重点研发计划项目 (BE2016155). （BE2016155）
