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arXiv · 2309.09185

NOMA-Based Coexistence of Near-Field and Far-Field Massive MIMO Communications

Zhiguo Ding·Robert Schober·H. Vincent Poor
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Abstract

This letter considers a legacy massive multiple-input multiple-output (MIMO) network, in which spatial beams have been preconfigured for near-field users, and proposes to use the non-orthogonal multiple access (NOMA) principle to serve additional far-field users by exploiting the spatial beams preconfigured for the legacy near-field users. Our results reveal that the coexistence between near-field and far-field communications can be effectively supported via NOMA, and that the performance of NOMA-assisted massive MIMO can be efficiently improved by increasing the number of antennas at the base station.

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Zhiguo Ding, Robert Schober, H. Vincent Poor. 2023-09-17. NOMA-Based Coexistence of Near-Field and Far-Field Massive MIMO Communications. https://arxiv.org/abs/2309.09185

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