On the ergodic capacity of MIMO-NOMA systems with JTRAS protocol under imperfect SIC and CSI

Menaa S. Khelil A. Rabie K.M. Li X. Nauryzbayev G.
2024 Taylor and Francis Ltd.

International Journal of Electronics
2024 #111 Issue 10 1760 - 1779 pp.

Antenna selection serves as an effective way of reducing complexity when dealing with multiple antennas, allowing for better signal transmission from a reduced number of antennas and thus increased system performance. In this paper, we derive a closed-form expression for the ergodic capacity (EC) of a multi-input multi-output non-orthogonal multiple access (MIMO-NOMA) network utilising joint transmit and receive antenna selection (JTRAS). We analyse the two-user and multi-user scenarios over Rayleigh fading channels with both imperfections: successful interference cancellation (SIC) and channel state information (CSI). To illustrate the gains of our proposed system, we compare its performance to that of its perfect counterpart. We observe that SIC and CSI imperfections have a significant impact on the performance of MIMO-NOMA networks. Furthermore, applying JTRAS to MIMO-NOMA also yields a higher sum EC than MIMO orthogonal multiple access (MIMO-OMA) with JTRAS. Finally, the close agreement between the analytical, asymptotic and simulation results validates the presented analysis.

CSI , EC , JTRAS , MIMO , NOMA

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LGEERE Laboratory & Department of Electrical Engineering, Echahid Hamma Lakhdar University, El-Oued, Algeria
Department of Engineering, Manchester Metropolitan University, Manchester, United Kingdom
School of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo, China
Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan

LGEERE Laboratory & Department of Electrical Engineering
Department of Engineering
School of Physics and Electronic Information Engineering
Department of Electrical and Computer Engineering

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