Performance Evaluation of MIMO-NOMA for the Next Generation Wireless Communications

Abstract

The principal objective of this paper is the performance evaluation of Multi-Input Multi-Output Non-Orthogonal Multiple Access (MIMO-NOMA) for Next Generation Wireless Communication Systems. The efficiency of the MIMO-NOMA technique over Non-Orthogonal Multiple Access (NOMA) and Orthogonal Multiple Access (OMA) is examined by using distinct parameters, in particular, Power Allocation (PA), Bit Error Rate (BER), Outage Probability (OP), and Channel Capacity (CC). A system model for MIMO is assumed for the two-user scenario. A Rayleigh fading channel is assumed between the Transmitter and the receiver. By using Rayleigh fading channel coefficients, calculated the achievable rates and SNR equations for all techniques and then compared each parameter with others. Finally, the simulation results are provided to facilitate the performance analysis of MIMO-NOMA for a next-generation wireless communication system and also demonstrate the accuracy of the developed analytical results.