On The Performance of Multi-User Massive MIMO over mm wave Channels

Massive multiple-input multiple-output (MIMO) and Millimeter-wave (mmWave) techniques are the main factors that support modern wireless communications. Use of mmWave technology is a major factor in solving the problem of throttling congestion in the current bandwidth, as the use of mmWave leads to a significant increase in data rate, throughput and capacity. In this paper, we investigated and studied performance of 5G multi-user (MU) massive MIMO mmWave communication and obtained output results (Spectral Efficiency), using three beamforming methods: conjugate beamforming (CB), minimum mean squared error (MMSE), and zero-forcing (ZF) through mm-Wave Channel by using multiple frequencies (28GHz and 38 GHz) and we explained which one of them is better in terms of spectrum efficiency.