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

被引：123

作者：

Zeng, Ming ^{[1
]}

Yadav, Animesh ^{[1
]}

Dobre, Octavia A. ^{[1
]}

Tsiropoulos, Georgios I. ^{[2
]}

Poor, H. Vincent ^{[3
]}

机构：

[1] Mem Univ, St John, NF A1B 3X9, Canada

[2] Natl Tech Univ Athens, Athens 10682, Greece

[3] Princeton Univ, Princeton, NJ 08544 USA

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2017年 / 6卷 / 04期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

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

D O I：

10.1109/LWC.2017.2712149

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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.

引用

页码：534 / 537

页数：4

共 11 条

[1]

[Anonymous], 2017, IEEE 5G TECH FOCUS

[2]

[Anonymous], 2016, 2016 IEEE/CIC International Conference on Communications in China (ICCC), Chengdu, China

[3]

[Anonymous], IEEE J SEL IN PRESS

[4] A General MIMO Framework for NOMA Downlink and Uplink Transmission Based on Signal Alignment [J].