Downlink Precoder Design for Two-User Power-Domain MIMO-NOMA with Excess Degrees of Freedom

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Details zur Publikation

Autorinnen und Autoren: Krishnamoorthy A, Schober R, Ding Z
Herausgeber: IEEE
Jahr der Veröffentlichung: 2019
ISBN: 978-1-7281-2373-8
ISSN: 2474-9133
Sprache: Englisch


Abstract

In this paper, we consider downlink precoder design for two-user power-domain multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) for the scenario where the receivers have fewer antennas than the transmitter. We propose a novel precoding scheme which takes advantage of the excess degrees of freedom (DoFs) at the transmitter to enhance MIMO-NOMA performance. The proposed precoder achieves simultaneous diagonalization of the MIMO channels of both users, assuming self-interference cancellation at one of the receivers, thereby lowering the overall decoding complexity. The performance of the proposed scheme is analyzed in terms of the ergodic rate using results from non-asymptotic random matrix theory. Our results show that the proposed scheme significantly outperforms orthogonal multiple access (OMA) and a benchmark precoder performing simultaneous diagonalization via generalized singular value decomposition (GSVD).


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Krishnamoorthy, Aravindh
Lehrstuhl für Digitale Übertragung
Schober, Robert Prof. Dr.-Ing.
Lehrstuhl für Digitale Übertragung


Einrichtungen weiterer Autorinnen und Autoren

University of Manchester


Zitierweisen

APA:
Krishnamoorthy, A., Schober, R., & Ding, Z. (2019). Downlink Precoder Design for Two-User Power-Domain MIMO-NOMA with Excess Degrees of Freedom. In IEEE (Eds.), Proceedings of the 2019 IEEE International Conference on Communications Workshops (ICC Workshops). Shanghai, CN.

MLA:
Krishnamoorthy, Aravindh, Robert Schober, and Zhiguo Ding. "Downlink Precoder Design for Two-User Power-Domain MIMO-NOMA with Excess Degrees of Freedom." Proceedings of the 2019 IEEE International Conference on Communications Workshops (ICC Workshops), Shanghai Ed. IEEE, 2019.

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Zuletzt aktualisiert 2019-11-08 um 11:53