arxiveess.SP2026-07-08
Blockage-Robust Beamforming for Near-Field Communications: From Single-Airy to Multi-Airy
High-frequency communications strongly depend on the line-of-sight (LoS) path, and obstacle blockage can severely degrade the received signal power and achievable rate. Near-field Airy beams with curved trajectories can circumvent obstacles, offering a promising way to alleviate…