Measurement of Dissemination Characteristics of LTE-V2X and ITS-G5 for Safety-Critical Vehicle-to-Vehicle Communication

Vehicle-to-vehicle communication enables the exchange of information between road users with the aim of improving safety and efficiency in the traffic environment. The highly dynamic environment with fast moving participants presents major challenges for the transmission technologies that are used. Furthermore, safety-critical applications in particular, place high demands on the reliability of the systems. Currently, there are two competing technologies for Vehicle-to-Vehicle communication: ITS-G5 and LTE-V2X. These two technologies have the potential to be used together due to their specific characteristics. As a result, they can complement each other constructively. In preparation for a comprehensive study of such a hybrid utilization, measurements were carried out to determine the characteristics of each technology in real traffic environment. The results of these measurements with both systems show, on the one hand, the characteristic properties of the technologies. On the other hand, they provide the information needed for the subsequent development of situation- and environment-dependent transmission models, that can be used in simulation environments to investigate complex traffic scenarios. This investigation should provide a direct comparison between different transmission technologies for the V2X communication. The measurement is focused on the successful transmission of information. The goal is to characterize the technologies by parameters that can be directly compared with the requirements of V2X use cases. The measurement results should be later used to create dissemination models for a simulation environment to investigate the communication for several use cases in a larger scale, especially in hybrid V2X networks.