NOMA-Based Coexistence of Near-Field and Far-Field Massive MIMO Communications

被引：8
|
作者：
Ding, Zhiguo [1 ,2 ]
Schober, Robert [3 ]
Poor, H. Vincent [4 ]
机构：
[1] Khalifa Univ, Dept Elect Engn & Comp Sci, Abu Dhabi, U Arab Emirates
[2] Univ Manchester, Dept Elect & Elect Engn, Manchester M1 9BB, England
[3] Friedrich Alexander Univ Erlangen Nurnberg, Dept Elect Engn, D-91054 Nurnberg, Germany
[4] Princeton Univ, Dept Elect & Comp Engn, Princeton, NJ 08544 USA
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2023年 / 12卷 / 08期
基金：
英国工程与自然科学研究理事会; 美国国家科学基金会; 欧盟地平线“2020”;
关键词：
Non-orthogonal multiple access (NOMA); near-field communications; beamforming;
D O I：
10.1109/LWC.2023.3277469
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This letter considers a legacy massive multiple-input multiple-output (MIMO) network, in which spatial beams have been preconfigured for near-field users, and proposes to use the non-orthogonal multiple access (NOMA) principle to serve additional far-field users by exploiting the spatial beams preconfigured for the legacy near-field users. Our results reveal that the coexistence between near-field and far-field communications can be effectively supported via NOMA, and that the performance of NOMA-assisted massive MIMO can be efficiently improved by increasing the number of antennas at the base station.
引用
收藏
页码：1429 / 1433
页数：5
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