Millimeter wave based 3D clustered MIMO channel modeling and system simulation for vehicle-to-vehicle communication

Abstract With the era of the fifth generation (5G) drawing near, there is an insistent demand for high data rates in wireless communication. But the spectrum in current cellular bands (below 6 GHz) is faced with an increasing shortage. Millimeter wave (mmWave) with a wide range of frequencies between 30 and 300 GHz is one of the key technologies to broaden the spectrum and improve the capacity of wireless systems. However, deploying mmWave is challenging due to its large path attenuation in the air and weak diffraction around obstacles. Moreover, the physical propagation in mmWave bands is characterized by a “clustered” channel model. To this end, multiple antenna arrays at the transmitter and the receiver can be a complement to enhance the signal gain. In this paper, we build upon the previous channel models containing various features and provide a clustered Multiple Input Multiple Output (MIMO) system framework in the case of time-variant non-stationary Vehicle-to-Vehicle (V2V) communication. Simulation results validate that the numbers of antennas, velocity of the users, link length, and the number of symbols will impact the transmission performance of the system. Mobility plays a more conspicuous role compared to antennas. The performance of the communication system is almost stable and controllable within a certain range of height. Our system outperforms the similar work in terms of spectral efficiency under the same-level deployments.