Analytical Non-Stationary 3D MIMO Channel Model For Vehicle-to-Vehicle Communication

Vehicle-to-vehicle communication plays a strong role in modern wireless communication systems,appropriate channel models are of great importance in future research,and propagation environment with slope is one special kind.In this paper,a novel three-dimensional non-stationary channel model is proposed.This model is a regular-shaped multi-cluster geometry-based analytical model,it combines the line-of-sight component and multi-cluster scattering rays.Each cluster of scatterers represents the influence of different moving vehicles on or near a slope,and scatterers are respectively distributed within two spheres around the transmitter and the receiver.In this model,it is considered that the azimuth and elevation angles of departure and arrival are jointly distributed and conform to the von Mises-Fisher distribution,which can easily control the range and concentration of the scatterers within spheres to mimic the real-world situation well.Moreover,the impulse response and the autocorrelation function of the corresponding channel is derived and proposed,then the Doppler power spectrum density of the channel is simulated and analyzed.In addition,the non-stationary characteristics of the presented channel model are observed through simulations.Finally,the simulation results are compared with measurement data and a WINNER Ⅱ based model.