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Abstract: Recent developments in inter-vehicle communications (IVC) focus on the conception of suitable hardware and communications protocols. We contribute to this effort by analysing the performance of IVC through a vehicular application approach. The study aims to measure the contribution of IVC in comparison with traditional safety sensors on an advanced driver assistance scheme (ADAS) system. We choose to study the risk assessment in crossroads approaching. The system is based on a standard 802.11 technology combined to a standard low-cost GPS receiver. The performance is analysed regarding the application showing the feasibility of the system and its integration on board our prototype LARA.
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1 Introduction
With the recent quick development of wireless communications systems, the concept of an advanced collaborative driving (in advanced driver assistance scheme (ADAS) systems) is made possible and reliable. This direct collaboration by the mean of vehicle-to-vehicle (V2V) communications makes it possible to address certain issues of road safety. The innovation and the originality of this type of communications provide an opportunity to many research teams worldwide to investigate various aspects of wireless communications and their applications. These reflections address the selection of the most reliable physical layer, the selection of the more adapted routing and access protocols [1, 2] and the definition of the final interfaces that are best suited for the different applications. This complexity explains the great number of projects involved in the definition and the design of V2V communications systems. From early 1980s Japanese intelligent vehicle highway systems (IVHS) projects [3] to platooning-like systems developed within the European Chauffeur [4] and US PATH program [5], the inter-vehicle communications (IVC) played an essential role in the vehicle control because of data transmission. Other applications of the V2V communications also need data and information transmission about incidents, accidents, emergencies and other possible risky configurations as addressed in SAFENET [6] and ARCOS projects [7]. In the very recent ongoing European Com2React project in which we are involved, the aim of the IVC is to achieve distributed intelligence to enhance traffic control. The European Car2Car Communication Consortium, which groups European vehicle manufacturers, is dedicated to increase road traffic safety and efficiency by means of IVC.
Even if we assume that from a technical point...