A Non-Stationary Geometry-Based Scattering Vehicle-to-Vehicle MIMO Channel Model

In this study, a non-wide-sense stationary geometry-based model that includes both static and mobile scatterers for vehicle-to-vehicle multiple-input multiple-output Ricean fading channels is presented. The proposed channel introduces a two-circle model to describe static vehicles (i.e., around the mobile transmitter (MT) and mobile receiver (MR)) and an ellipse model to depict stationary roadside environments. The relative movement between the MT and MR results in time-variant geometric statistics that make our model non-stationary. Furthermore, the impacts of moving properties of mobile scatterers on the channel statistics are first investigated in the proposed model. Finally, numerical results show that the proposed channel statistics are very close to the prior results, thereby demonstrating the utility of our channel model.