SPATIAL MODULATION ASSISTED MULTI-ANTENNA NON-ORTHOGONAL MULTIPLE ACCESS

被引：55

作者：

Zhong, Caijun ^{[1
]}

Hu, Xiaoling ^{[1
]}

Chen, Xiaoming ^{[2
,3
]}

Ng, Derrick Wing Kwan ^{[4
]}

Zhang, Zhaoyang ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Hangzhou, Zhejiang, Peoples R China

[2] Zhejiang Univ, Coll Informat Sci & Elect Engn, Hangzhou, Zhejiang, Peoples R China

[3] Southeast Univ, Nanjing, Jiangsu, Peoples R China

[4] Univ New South Wales, Sydney, NSW, Australia

来源：

IEEE WIRELESS COMMUNICATIONS | 2018年 / 25卷 / 02期

基金：

澳大利亚研究理事会; 中国国家自然科学基金;

关键词：

5G SYSTEMS; CHALLENGES; NOMA; OPPORTUNITIES; PERFORMANCE;

D O I：

10.1109/MWC.2018.1700062

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Multi-antenna non-orthogonal multiple access (NOMA) is a promising technique to significantly improve spectral efficiency and support massive access, which has received considerable interest from academia and industry. This article first briefly introduces the basic idea of conventional multi-antenna NOMA technique, and then discusses the key limitations, namely, the high complexity of successive interference cancellation and the lack of fairness between a user with a strong channel gain and a user with a weak channel gain. To address these problems, this article proposes a novel spatial modulation assisted multi-antenna NOMA technique, which avoids the use of successive interference cancellation and is able to completely cancel intra-cluster interference. Furthermore, simulation results are provided to validate the effectiveness of the proposed novel technique compared to the conventional multi-antenna NOMA. Finally, this article points out the key challenges and sheds light on the future research directions of the spatial modulation assisted multi-antenna NOMA technique.

引用

页码：61 / 67

页数：7

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