Enhancing Security and Privacy in C2X Communication by Radiation Pattern Control

In this paper we propose a new approach to enhance security and privacy in C2X communication directly on the physical layer. Instead of using a single omni-directional antenna, our approach relies on an uniform linear antenna array, which enables beam forming. By this means, our approach allows adjusting the radiation and the reception patterns of the vehicle, which is essential for excluding undesired communication parties trying to eavesdrop exchanged messages or to distribute corrupted information. To specify the antenna array configuration appropriate to some important use cases, a simulation-based approach is deployed. A dedicated simulator is exploited, which produces field patterns and visualizes them according to a mobility model and on user settings. Based on the visual simulation results the antenna array has been specified and evaluated.