Adaptive Message Rate Control of Infrastructured DSRC Vehicle Networks for Coexisting Road Safety and Non-Safety Applications
Adaptive Message Rate Control of Infrastructured DSRC Vehicle Networks for Coexisting Road Safety and Non-Safety Applications
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DOI：
10.1155/2012/134238
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发表时间：
2012-08
影响因子：
2.3
通讯作者：
Wenyang Guan;Jianhua He;Chao Ma;Zuoyin Tang;Yue Li
中科院分区：
文献类型：
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作者：
Wenyang Guan;Jianhua He;Chao Ma;Zuoyin Tang;Yue Li
智能交通系统(ITS)在道路安全应用和非安全应用方面都具有巨大的潜力。ITS面临的一大挑战是安全和非安全应用带来的大量车辆、高机动性和突发性交通导致的可靠和低成本的车辆通信。在这篇文章中，我们研究了专用短程通信(DSRC)在基础设施车辆网络上用于共存的安全和非安全应用。这项工作的主要目标是提高车载网络通信的可扩展性，确保安全应用的服务质量，并为非安全应用留出尽可能多的带宽。提出了一种两级自适应控制方案，为安全应用寻找合适的消息速率和控制信道间隔。仿真结果表明，在车辆数量变化的情况下，该自适应控制方法优于固定控制方法。
Intelligent transport system (ITS) has large potentials on road safety applications as well as nonsafety applications. One of the big challenges for ITS is on the reliable and cost-effective vehicle communications due to the large quantity of vehicles, high mobility, and bursty traffic from the safety and non-safety applications. In this paper, we investigate the use of dedicated short-range communications (DSRC) for coexisting safety and non-safety applications over infrastructured vehicle networks. The main objective of this work is to improve the scalability of communications for vehicles networks, ensure QoS for safety applications, and leave as much as possible bandwidth for non-safety applications. A two-level adaptive control scheme is proposed to find appropriate message rate and control channel interval for safety applications. Simulation results demonstrated that this adaptive method outperforms the fixed control method under varying number of vehicles.