This paper describes a vehicle-to-vehicle (V2V) communication system that is developed in the SARTRE project. The project vision is to develop and integrate technology that enables vehicles to drive in platoons. SARTRE defines a platoon (or road train) as a collection of vehicles where a manually driven heavy lead vehicle is followed by several automatically controlled (both laterally and longitudinally) following trucks and/or passenger cars. The V2V communication system enables forwarding of messages between vehicles to share data such as vehicle speed. In this paper, we present performance measurements of a first prototype of the V2V system. This is an important part of the platooning demonstrator that is being developed in the SARTRE project. We evaluate two antenna placements on the lead vehicle; in front on the driver cabin and in the rear on top of the container. Our results show that the rear placement provides superior results, especially for distances above 70 meters.
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