Resolution of Near-Field Beamforming and Its Impact on NOMA

被引：13
|
作者：
Ding, Zhiguo [1 ,2 ]
机构：
[1] Khalifa Univ, Dept Elect Engn & Comp Sci, Abu Dhabi, U Arab Emirates
[2] Univ Manchester, Dept Elect & Elect Engn, Manchester M13 9PL, England
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2024年 / 13卷 / 02期
基金：
英国工程与自然科学研究理事会;
关键词：
Near-field communication; non-orthogonal multiple access (NOMA); resolution of near-field beamforming;
D O I：
10.1109/LWC.2023.3331954
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The resolution of near-field beamforming is an important metric to measure how effectively users with different locations can be distinguished. This letter identifies the condition under which the resolution of near-field beamforming is not perfect. This imperfect resolution means that a legacy user's preconfigured near-field beam can be still useful to other users, which motivates the application of non-orthogonal multiple access (NOMA). Both the analytical and simulation results are presented to demonstrate that indeed those near-field beams preconfigured for legacy users can be used to serve additional NOMA users effectively, which improves the overall system throughput and connectivity.
引用
收藏
页码：456 / 460
页数：5
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