Vehicular ad-hoc networks (VANETS) enable a variety of vehicle comfort services, traffic management applications, infotainment services and are the basis for a new generation of preventive and active safety functions. One of the main goals driving ad-hoc inter-vehicle and vehicle-to-roadside communication is to significantly reduce the number of traffic accidents. At intersections, the trajectories of traffic participants are crossing each other and therefore need special rules to prevent accidents. By intelligently controlling signalling at intersections, providing additional information to the driver and warning the driver in critical situations, the authors believe the number of accidents at intersections can be reduced. One major precondition to realize these functions is the local exchange of information. This paper therefore focuses on vehicle-to-infrastructure communication for active safety, particularly between vehicles and traffic lights. It will be argued that most of the services offered by road side units or other cars will require a secure authentication mechanism in order to be able to trust the information and prevent tampering and unauthorized use. This authentication process must not reveal the identity of the vehicles involved. The authors present their solution to this problem and show how it is used for red light violation warning, emergency vehicle preemption and adaptive traffic light control.
Secure communication for intersection assistance
Sichere Kommunikation für den intersektionalen Beistand auf der Straße
2005
5 Seiten, 2 Bilder, 4 Tabellen, 10 Quellen
Conference paper
English
Secure Communication for Intersection Assistance
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