Resolution of Near-Field Beamforming and Its Impact on NOMA

Zhiguo Ding

doi:10.1109/LWC.2023.3331954

Resolution of Near-Field Beamforming and Its Impact on NOMA

Zhiguo Ding

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

32 Scopus citations

Abstract

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.

Original language	British English
Pages (from-to)	456-460
Number of pages	5
Journal	IEEE Wireless Communications Letters
Volume	13
Issue number	2
DOIs	https://doi.org/10.1109/LWC.2023.3331954
State	Published - 1 Feb 2024

Keywords

Near-field communication
non-orthogonal multiple access (NOMA)
resolution of near-field beamforming

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10.1109/LWC.2023.3331954

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abstract = "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.",

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AB - 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.

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Resolution of Near-Field Beamforming and Its Impact on NOMA

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Keywords

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