Massive MIMO Modeling And Application On System Planning Simulation

With the 5G communication system development, Massive MIMO has become a hot research. Massive MIMO technology can increase the capacity of the system without increasing the bandwidth, greatly improve the spectral efficiency, and has a higher robustness to meet the 5G high quality of service requirements. Wireless channel is the basis of communication system research, the accurate channel model can provide theoretical basis and technical support for system optimization and simulation. Massive MIMO channel modeling work has just started, there are few literatures on Massive MIMO channel measurement. Based on this background, this paper studies the channel characteristics and channel modeling of Massive MIMO. The main contents are as follows:This paper studies the characteristics of the Massive MIMO wireless channel and summarizes the channel measurement and modeling work of Massive MIMO at home and abroad. The channel capacity of Massive MIMO wireless channel is analyzed theoretically. The MIMO channel modeling model is studied, and the MIMO stochastic geometric model is analyzed. The differences between MIMO and Massive MIMO channel characteristics are summarized.For multipath propagation in Massive MIMO channel, the concept of cluster is introduced. The clusters with similar transmission angles are integrated into clusters, and the clusters are modeled by the birth and death process. Considering the generation and disappearance process of clusters,a new generation and iteration algorithm based on birth and death process is proposed. Reference MIMO stochastic geometry modeling process,combined with Massive MIMO system spherical wave characteristics and instability, a multi-ring channel modeling scheme is proposed. The spatial correlation analysis and simulation of this model are carried out. The simulation results are in good agreement with the measured data of the related literatures, and the rationality of the scheme is verified.