A Novel MIMO Channel Model for Congested Communication Environments

This paper presents a novel multiple-input multiple-output (MIMO) channel model for congested curved-street vehicle-to-vehicle (V2V) non-line-of-sight communication environments, where the scatterers are located within narrow arcs along the curved street. The mobile transmitter and mobile receiver are equipped with massive MIMO antenna array; therefore, three-dimensional spherical antenna arrays are introduced in the model, rather than two-dimensional planar wavefront assumption used in traditional MIMO channel models. The closed expressions for the probability density functions of the azimuth angle of departure, the elevation angle of departure, the azimuth angle of arrival, and elevation angle of arrival are first deduced by analyzing the proposed V2V channel model. We then analyze the temporal and spatial cross-correlation functions corresponding to the single- and doublebounced scattering propagation paths. Comparisons with previously reported results are used to validate the applicability and feasibility of the proposed model.