Hybrid Beamforming Optimization for Near-Field Terahertz Multi-User System With FTTDs
In this paper, we investigate beamforming for a wideband terahertz (THz) communication system serving multiple users in the near-field region. A hybrid beamforming architecture employing fixed true time delays (FTTDs) and phase shifters (PSs) is introduced to reduce the spatial wideband effect. Both fully-connected (FC...