Investigation on Antenna Systems for Car-to-Car Communication

This paper introduces a novel method for the investigation of antenna systems in Car-to-Car communication channels. With a three-dimensional ray-tracing simulation tool the channel characteristics are determined for various antenna positions and numbers of antennas in realistic car-to-car communication channels for urban intersection scenarios. Then an antenna synthesis method is used to determine the optimum current distributions for each subchannel, i.e. the optimum radiation patterns, in order to investigate the communication limits of those channels. As result it is seen, that for this type of scenarios antenna placement is decisive in the system performance. Furthermore, it is shown that under the studied configuration, multiplexing effects could not be exploited and that placement of the antennas below the car is more robust toward scenario changes.