Near-Field Beam Training With Hierarchical Codebook: Two-Stage Learning-Based Approach - Weng, Caihao; Guo, Xufeng; Wang, Ying (IEEE transactions on vehicular technology, 2024)
Keywords: Aperture antennas; beam training; Beamforming; Channel capacity; Codes; deep learning; Design methodology; Far fields; hierarchical codebook; Leakage; Learning; Modular units; Near fields; near-field; Protocols; Radio frequency; Signal to noise ratio; Spherical waves; Training; Vectors; XL-MIMO