On the Sum Rate of MIMO-NOMA and MIMO-OMA Systems

Ming Zeng; Animesh Yadav; Octavia A. Dobre; Georgios I. Tsiropoulos; H. Vincent Poor

doi:10.1109/LWC.2017.2712149

On the Sum Rate of MIMO-NOMA and MIMO-OMA Systems

Ming Zeng, Animesh Yadav, Octavia A. Dobre, Georgios I. Tsiropoulos, H. Vincent Poor

Research output: Contribution to journal › Article › peer-review

148 Scopus citations

Abstract

In this letter, the performance of non-orthogonal multiple access (NOMA) is compared with conventional orthogonal multiple access (OMA) over multiple-input multiple-output (MIMO) channels. It is proved analytically that for a simple scenario of two users, MIMO-NOMA dominates MIMO-OMA in terms of both sum rate and ergodic sum rate. Furthermore, for a more practical scenario of multiple users, with two users paired into a cluster and sharing a common transmit beamforming vector, the conclusion still holds. Numerical simulations are conducted, which corroborate the analytical findings.

Original language	English (US)
Article number	7938651
Pages (from-to)	534-537
Number of pages	4
Journal	IEEE Wireless Communications Letters
Volume	6
Issue number	4
DOIs	https://doi.org/10.1109/LWC.2017.2712149
State	Published - Aug 2017

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Electrical and Electronic Engineering

Keywords

5G systems
Non-orthogonal multiple access (NOMA)
channel capacity
multiple-input multiple-output (MIMO)
sum rate
user pairing

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10.1109/LWC.2017.2712149

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title = "On the Sum Rate of MIMO-NOMA and MIMO-OMA Systems",

abstract = "In this letter, the performance of non-orthogonal multiple access (NOMA) is compared with conventional orthogonal multiple access (OMA) over multiple-input multiple-output (MIMO) channels. It is proved analytically that for a simple scenario of two users, MIMO-NOMA dominates MIMO-OMA in terms of both sum rate and ergodic sum rate. Furthermore, for a more practical scenario of multiple users, with two users paired into a cluster and sharing a common transmit beamforming vector, the conclusion still holds. Numerical simulations are conducted, which corroborate the analytical findings.",

keywords = "5G systems, Non-orthogonal multiple access (NOMA), channel capacity, multiple-input multiple-output (MIMO), sum rate, user pairing",

author = "Ming Zeng and Animesh Yadav and Dobre, {Octavia A.} and Tsiropoulos, {Georgios I.} and Poor, {H. Vincent}",

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T1 - On the Sum Rate of MIMO-NOMA and MIMO-OMA Systems

AU - Zeng, Ming

AU - Yadav, Animesh

AU - Dobre, Octavia A.

AU - Tsiropoulos, Georgios I.

AU - Poor, H. Vincent

PY - 2017/8

Y1 - 2017/8

N2 - In this letter, the performance of non-orthogonal multiple access (NOMA) is compared with conventional orthogonal multiple access (OMA) over multiple-input multiple-output (MIMO) channels. It is proved analytically that for a simple scenario of two users, MIMO-NOMA dominates MIMO-OMA in terms of both sum rate and ergodic sum rate. Furthermore, for a more practical scenario of multiple users, with two users paired into a cluster and sharing a common transmit beamforming vector, the conclusion still holds. Numerical simulations are conducted, which corroborate the analytical findings.

AB - In this letter, the performance of non-orthogonal multiple access (NOMA) is compared with conventional orthogonal multiple access (OMA) over multiple-input multiple-output (MIMO) channels. It is proved analytically that for a simple scenario of two users, MIMO-NOMA dominates MIMO-OMA in terms of both sum rate and ergodic sum rate. Furthermore, for a more practical scenario of multiple users, with two users paired into a cluster and sharing a common transmit beamforming vector, the conclusion still holds. Numerical simulations are conducted, which corroborate the analytical findings.

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KW - Non-orthogonal multiple access (NOMA)

KW - channel capacity

KW - multiple-input multiple-output (MIMO)

KW - sum rate

KW - user pairing

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On the Sum Rate of MIMO-NOMA and MIMO-OMA Systems

Abstract

All Science Journal Classification (ASJC) codes

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