NOMA Versus Massive MIMO in Rayleigh Fading

Kamil Senel; Hei Victor Cheng; Emil Björnson; Erik G. Larsson

doi:10.1109/spawc.2019.8815545

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arXiv · 2112.15493

NOMA Versus Massive MIMO in Rayleigh Fading

Kamil Senel·Hei Victor Cheng·Emil Björnson·Erik G. Larsson

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Abstract

This paper compares the sum rates and rate regions achieved by power-domain NOMA (non-orthogonal multiple access) and standard massive MIMO (multiple-input multiple-output) techniques. We prove analytically that massive MIMO always outperforms NOMA in i.i.d.~Rayleigh fading channels, if a sufficient number of antennas are used at the base stations. The simulation results show that the crossing point occurs already when having 20-30 antennas, which is far less than what is considered for the next generation cellular networks.

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Kamil Senel, Hei Victor Cheng, Emil Björnson, Erik G. Larsson. 2021-12-31. NOMA Versus Massive MIMO in Rayleigh Fading. https://doi.org/10.1109/spawc.2019.8815545

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