Precoder Design for Two-User Uplink MIMO-NOMA with Simultaneous Triangularization
Krishnamoorthy A, Schober R (2019)
Publication Type: Conference contribution
Publication year: 2019
Journal
Publisher: IEEE
City/Town: NEW YORK
Conference Proceedings Title: 2019 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM)
Event location: Waikoloa, HI
DOI: 10.1109/globecom38437.2019.9014161
Abstract
In this paper, we consider the uplink precoder design for two-user power-domain multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) systems. We propose a novel precoding scheme which utilizes simultaneous tri-angularization to decompose the MIMO-NOMA channels of the two users into multiple single-input single-output (SISO)-NOMA channels assuming low-complexity self-interference cancellation at the base station, thereby reducing the decoding complexity. The proposed scheme takes advantage of the available excess degrees of freedom at the base station to enhance the ergodic achievable rate. The ergodic achievable rate region of the proposed scheme is characterized using finite-size random matrix theory (RMT). Our results illustrate that the proposed scheme significantly outperforms traditional MIMO-OMA and zero forcing based MIMO-NOMA schemes, and has a small performance gap to the achievable rate region of MIMO-NOMA.
Authors with CRIS profile
Robert Schober
Lehrstuhl für Digitale Übertragung (IDC)
Aravindh Krishnamoorthy
Lehrstuhl für Digitale Übertragung (IDC)
Involved external institutions
Germany (DE)How to cite
APA:
Krishnamoorthy, A., & Schober, R. (2019). Precoder Design for Two-User Uplink MIMO-NOMA with Simultaneous Triangularization. In 2019 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM). Waikoloa, HI: NEW YORK: IEEE.
MLA:
Krishnamoorthy, Aravindh, and Robert Schober. "Precoder Design for Two-User Uplink MIMO-NOMA with Simultaneous Triangularization." Proceedings of the IEEE Global Communications Conference (GLOBECOM), Waikoloa, HI NEW YORK: IEEE, 2019.
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