Towards a European Solution for Networked Cars - Integration of Car-to-Car technology into cellular systems for vehicular communication in Europe
Authors: Zang, Yunpeng and Sories, Sabine and Gehlen, Guido and Walke, Bernard
Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University
: Yunpeng Zang
In The Fully Networked Car Workshop 2009, p. 14, Geneva, Switzerland, 2009.
Publication Date: Mar, 2009
On page(s):14
ISBN:
Abstract The ability of improving safety and efficiency of current transportation systems makes Inter-Vehicle Communication (IVC) or Car-to-Car (C2C) communication technology an essential component of future Intelligent Transportation System (ITS) worldwide. The recently approved 30 MHz spectrum at 5.9 GHz for vehicular communication in Europe was a milestone towards the rollout of a European vehicular communication system. So far, most of the research efforts are focusing on the Wireless Local Area Network (WLAN) based ad-hoc C2C technology, i.e., the IEEE Wireless Access in Vehicular Environments (WAVE) system. The WAVE system is able to provide broadband local communications with very low latency, in short to medium communication range, and with a flexible ad-hoc network structure. These characteristics are perfect for active safety applications, such as wireless local hazard warnings, vehicle maneuvering assistance or cooperative automatic cruise control. Our study has shown that WAVE technology meets the communication requirements in most of the scenarios, on highway and inside city, with over-crowded or sparse road traffic, given sufficient market penetration rate and supports from road side equipments. Although the C2C system could work autonomously in ad-hoc mode, infrastructure is necessary to implement security mechanisms for safety applications. Furthermore, infrastructure is needed to realize typical infotainment services. And finally, infrastructure is also helpful to reach a high market penetration rate of the C2C devices. Ad-hoc networks require a certain minimum penetration rate to make the network work, whereas an infrastructure based system is technically functional from the first user. Thus, with a mere ad-hoc C2C scenario the system introduction seems to be tough. Therefore, a WAVE infrastructure is expected. It is questionable if a dedicated WAVE roadside infrastructure will be deployed. However, in Europe, cellular systems like GPRS, UMTS and HSPA have been well developed with substantially high coverage. Instead of deploying a dedicated WAVE based roadside communication infrastructure, the German Federal Ministry of Education and Research (BMBF) funded research project Cooperative Car (CoCar) develops and investigates a cellular based solution for vehicular safety and comfort applications. The cellular based solution has been proved to be very efficient in disseminating messages and providing location-based services with wide range, comparing to the ad-hoc C2C technology. But it has also been observed that the network delay and system capacity of cellular system constrain the performance of cellular systems in supporting very time critical safety applications in vehicular environments. Therefore, we propose a hybrid C2X solution combing the ad-hoc C2C communication technology and the infrastructure based cellular system benefiting from advantages of both technologies. It is expected that the ad-hoc C2C technology assures good performance supporting time critical safety applications in a small to medium range, and the infrastructure enables information distribution in medium and large range, security mechanisms and other infrastructure based services. In addition, the cellular communication enables the C2X introduction, and thus boosts the market penetration of WAVE devices without deploying a completely new infrastructure system of road-side units (RSUs).
Author Keywords
Car2Car, ITS, UMTS, Inter-Vehicle Communications (IVC), Wireless Access in Vehicular Environments (WAVE), Cellular System, UMTS, GPRS, HSDPA, LTE, IEEE 802.11p
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Bibtex
@MISC{ZaSoGeWaTFNC2009,
AUTHOR = {Zang, Y. and Sories, S. and Gehlen, G. and Walke, B.},
TITLE = {Towards a European Solution for Networked Cars - Integration of
Car-to-Car technology into cellular systems for vehicular communication
in Europe},
YEAR = {2009},
MONTH = {Mar},
PAGES = {14},
ADDRESS = {Geneva, Switzerland},
BOOKTITLE = {The Fully Networked Car Workshop 2009},
HOWPUBLISHED = {Speech},
ORGANIZATION = {ITU},
AFFILIATION = {Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
KEYWORDS = {Car2Car, ITS, UMTS, Inter-Vehicle Communications (IVC), Wireless Access
in Vehicular Environments (WAVE), Cellular System, UMTS, GPRS, HSDPA,
LTE, IEEE 802.11p },
URL = {https://www.comnets.rwth-aachen.de}
}