Achieving Beamfocusing via Two Separated Uniform Linear Arrays

2024/12/04 by Alva Kosasih, Kosasih, Alva, Özlem Tuğfe Demir +3 · 3 citations
Engineering · Computer Science · #Antenna Design and Optimization #Speech and Audio Processing

paper · pdf · doi:10.48550/arxiv.2412.03232

Abstract

This paper investigates coordinated beamforming using a modular linear array (MLA), composed of a pair of physically separated uniform linear arrays (ULAs), treated as sub-arrays. We focus on how such setups can give rise to near-field effects in 6G networks without requiring many antennas. Unlike conventional far-field beamforming, near-field beamforming enables simultaneous data service to multiple users at different distances in the same angular direction, offering significant multiplexing gains. We present a detailed analysis, including analytical expressions of the beamwidth and beamdepth for the MLA. Our findings reveal that using the MLA approach, we can remove approximately 36% of the antennas in the ULA while achieving the same level of beamfocusing.

Cited by

• Performance Bounds for Near-Field Velocity Estimation With Modular Linear Array
• Distance-Domain Degrees of Freedom in Near-Field Region
• Analyzing URA Geometry for Enhanced Spatial Multiplexing and Extended Near-Field Coverage

Related

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