Design and simulation of a collision notification application with geocast routing for car-to-car communications

European Transport Research Review

Original Paper

Sandra Céspedes¹  Gonzalo Llano²  Ana María Orozco³  Roger Michoud⁴ 

[1] Department of Electrical Engineering, Universidad de Chile, Santiago, Chile;Department of ICT, Universidad Icesi, Cali, Colombia;Department of ICT, Universidad Icesi, Cali, Colombia;Technische Universität München (TUM), Munich, Germany;École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland;

关键词: Car-to-car communications;    Geocast routing;    Collision warning application;    Vehicular Ad Hoc Networks;   

DOI  :  10.1007/s12544-015-0185-1

 received in 2015-01-31, accepted in 2015-10-06,  发布年份 2015

来源: Springer

【 摘 要 】

IntroductionCar-to-X Communications are envisioned to improve road safety, traffic efficiency, and information services through short-range and real-time systems. The enabling applications have varied requirements such as low latency, specific forwarding patterns, and reliable data exchange between vehicles and infrastructure. Hence, a cross-layer architecture for vehicular applications should be defined according to the goals of the implementation, so as to consider proper routing and dissemination mechanisms, communication protocols, and the application’s design and operation.MethodsIn this context, we propose the characterization of the upper layers of a safety-oriented Car-to-Car application. We propose a cross-layer application/network layer design for a Post Collision Notification (PCN) application, and by means of a coupled simulation model that combines the communication network with vehicular traffic flow, we assess the performance of the application design.ResultsThree main results can be derived from our work. First, the selected geocast protocol (DRG) shows to be an accurate protocol for safety applications and it may be a scalable routing mechanism for other applications. Second, that DRG is effective even for larger urban areas. And third, there is a reduction of acceleration and speed of the closest vehicles to the incident zone, which is a positive impact of the PCN application on the traffic flow.ConclusionsConsequently, the proposed cross-layer architecture and the implementation of geocast routing has shown a suitable support and good performance for safety applications, and could be extended to other application on the Car-to-X domain.

【 授权许可】

CC BY   
© The Author(s) 2015