Low Complexity Optimization of the Asymptotic Spectral Efficiency in Massive MIMO NOMA

Hadley, Lucinda and Chatzigeorgiou, Ioannis (2020) Low Complexity Optimization of the Asymptotic Spectral Efficiency in Massive MIMO NOMA. IEEE Wireless Communications Letters. ISSN 2162-2337 (In Press)

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Abstract

Massive multiple-input multiple-output (MIMO) technology facilitates huge increases in the capacity of wireless channels, while non-orthogonal multiple access (NOMA) addresses the problem of limited resources in traditional orthogonal multiple access (OMA) techniques, promising enhanced spectral efficiency. This work uses asymptotic capacity computation results to reduce the complexity of a power allocation algorithm for small-scale MIMO-NOMA, so that it may be applied for systems with massive MIMO arrays. The proposed method maximizes the sum-capacity of the considered system, subject to power and performance constraints, and demonstrates greater accuracy than alternative approaches despite remaining low-complexity for arbitrarily large antenna arrays.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Wireless Communications Letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3101
Subjects:
ID Code:
145492
Deposited By:
Deposited On:
09 Jul 2020 10:15
Refereed?:
Yes
Published?:
In Press
Last Modified:
22 Sep 2020 05:06