一种基于实时车流密度信息的VANET路由协议  

VANET routing protocols based on real-time traffic density information

作　　者：李新[1] 吴学文[1] 

机构地区：[1]河海大学,江苏南京211100

出　　处：《电子设计工程》2013年第9期69-72,共4页Electronic Design Engineering

摘　　要：在车载自组网中,路由协议很大程度上决定了整个网络的性能。如何有效的利用车流信息提高传输质量是改善路由性能的一个关键问题。本文基于速度-密度线性模型,提出了一种实时车流密度的路由协议RVDR(Real-time Vehicle Density Routing)。该协议通过与邻居节点交换的速度信息,对相关道路车流密度进行预测,并给出基于车流密度信息的路径选择方法。仿真结果表明,与现有协议相比,RVDR协议在实时性和高效性等性能方面得到改进。Routing protocol largely determines the performance of the entire network in VANET. How to make effective use of information to improve the transmission quality is a key issue to improve routing performance. Based on speed-density linear model, a real time traffic density routing protocols RVDR （the Vehicle Density Routing, real-time） was proposed. Speed information exchange with the neighbor, the agreement of the relevant road traffic density to predict, given the path selection method based on the traffic density information. The simulation results show that, compared with the existing agreement, RVDR protocols in real-time and efficient performance improved.

关 键 词：车载自组网 路由协议 车流密度 网络仿真 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]