Measurements and Modeling of Narrow-Beam Channel Dispersion Characteristics in Vehicle-to-Infrastructure Scenarios

An accurate and in-depth understanding of the narrow-beam channel is vital to support the application of 5G new radio-V2X (5G-V2X) communication in Internet of Vehicles. In this paper, we investigate the radio propagation measurements and characterization of the narrow-beam channel in typical vehicle-to-infrastructure (V2I) scenarios. The channel measurements based on a phased array antenna at 3.35 GHz have been performed in two typical V2I scenarios. The time-frequency-space dispersion of narrow-beam V2I channel has been characterized in terms of root-mean-square (RMS) delay spread, RMS Doppler spread and RMS angular spread, then the empirical models are established for the narrow-beam channel modeling. These results are helpful for the planning and optimization of 5G-V2X communication systems.