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Optimization of Maximum Routing Hop Count Parameter Based on Vehicle Density for VANET
Mobile Information Systems ( IF 1.863 ) Pub Date : 2020-06-10 , DOI: 10.1155/2020/2741648
Zhonghui Pei 1 , Wei Chen 1, 2 , Hongjiang Zheng 3 , Luyao Du 2
Affiliation  

Vehicular Ad Hoc Network (VANET) is the basic technology of intelligent transportation systems for providing reliable and real-time communications between vehicles and vehicles or roadside units. In order to improve the communication quality of VANET, this paper studies the effects of different maximum routing hop count parameters on the performance of the network under different vehicle densities. We establish the mathematical models of node connectivity probability and the packet delivery ratio by using the Poisson distribution model. And the maximum routing hop count selection algorithm (MRHSA) is proposed based on the theoretical model established in the paper. The simulation experiments and statistical analysis on packet delivery ratio, throughput, and end-to-end delay are performed under the straight road and urban road scenes, supported by the Vehicle in Network Simulation (Veins). The results show that the maximum routing hop count parameter is an important impact factor on the communication quality of the network. It is found that MRSHA proposed in this paper can improve the packet delivery ratio by about 9.1% at most in straight road scenarios, which indicates that MRHSA will contribute to the improvement of the communication quality of VANET.

中文翻译:

基于车辆密度的VANET最大路由跳数参数优化

车载自组织网络(VANET)是智能交通系统的基本技术,用于在车辆与车辆或路边单元之间提供可靠的实时通信。为了提高VANET的通信质量,本文研究了在不同车辆密度下,不同的最大路由跳数参数对网络性能的影响。我们使用泊松分布模型建立了节点连通性概率和数据包传输率的数学模型。在此基础上,建立了最大路由跳数选择算法(MRHSA)。在直路和城市道路场景下,进行分组传输率,吞吐量和端到端延迟的仿真实验和统计分析,由车辆在网络仿真(静脉)中提供支持。结果表明,最大路由跳数参数是影响网络通信质量的重要因素。结果表明,本文提出的MRSHA在直通场景下最多可以提高9.1%的报文发送率,这表明MRHSA将为提高VANET的通信质量做出贡献。
更新日期:2020-06-10
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