Near-field Beam Training with Sparse DFT Codebook

C Zhou, C Wu, C You, S Shi - arXiv preprint arXiv:2406.04262, 2024 - arxiv.org
Extremely large-scale array (XL-array) has emerged as one promising technology to
improve the spectral efficiency and spatial resolution of future sixth generation (6G) wireless …

Two-stage hierarchical beam training for near-field communications

C Wu, C You, Y Liu, L Chen… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Extremely large-scale array (XL-array) has emerged as a promising technology to improve
the spectrum efficiency and spatial resolution of future wireless systems. However, the huge …

Near-field beam training: Joint angle and range estimation with DFT codebook

X Wu, C You, J Li, Y Zhang - IEEE Transactions on Wireless …, 2024 - ieeexplore.ieee.org
Prior works on near-field beam training have mostly assumed dedicated polar-domain
codebook and on-grid range estimation, which, however, may suffer long training overhead …

Fast near-field beam training for extremely large-scale array

Y Zhang, X Wu, C You - IEEE Wireless Communications Letters, 2022 - ieeexplore.ieee.org
In this letter, we study efficient near-field beam training design for the extremely large-scale
array (XL-array) communication systems. Compared with the conventional far-field beam …

Multi-beam Training for Near-field Communications in High-frequency Bands

C Zhou, C You, Z Huang, S Shi, Y Gong… - arXiv preprint arXiv …, 2024 - arxiv.org
In this paper, we study efficient multi-beam training design for near-field communications to
reduce the beam training overhead of conventional single-beam training methods. In …

Near-field beam management for extremely large-scale array communications

C You, Y Zhang, C Wu, Y Zeng, B Zheng… - arXiv preprint arXiv …, 2023 - arxiv.org
Extremely large-scale arrays (XL-arrays) have emerged as a promising technology to
achieve super-high spectral efficiency and spatial resolution in future wireless systems. The …

Sparse Array Enabled Near-Field Communications: Beam Pattern Analysis and Hybrid Beamforming Design

C Zhou, C You, H Zhang, L Chen, S Shi - arXiv preprint arXiv:2401.05690, 2024 - arxiv.org
Extremely large-scale array (XL-array) has emerged as a promising technology to enable
near-field communications for achieving enhanced spectrum efficiency and spatial …

Near-Field Full Dimensional Beam Codebook Design for XL-MIMO Communications

W Huang, C Li, Y Zeng, C Kai… - GLOBECOM 2023-2023 …, 2023 - ieeexplore.ieee.org
Extremely large-scale multiple-input multiple-output (XL-MIMO) communication system with
extremely large-scale antenna arrays can achieve ultra-high spectral efficiency. However …

Near-field Beamforming for Extremely Large-scale MIMO Based on Unsupervised Deep Learning

J Nie, Y Cui, Z Yang, W Yuan, X Jing - arXiv preprint arXiv:2406.03249, 2024 - arxiv.org
Extremely Large-scale Array (ELAA) is considered a frontier technology for future
communication systems, pivotal in improving wireless systems' rate and spectral efficiency …

Near-field wideband beam training for ELAA with uniform circular array

Y Chen, L Dai - Science China Information Sciences, 2024 - Springer
Extremely large-scale antenna array (ELAA) at millimeter wave (mmWave) and Terahertz
(THz) band has been considered a key technology for combating high attenuation in high …