3 papers
econ.EM2026
Channel Estimation with Hierarchical Sparse Bayesian Learning for ODDM Systems
Jiasong Han, Xuehan Wang, Jingbo Tan +4
Orthogonal delay-Doppler division multiplexing (ODDM) is a promising modulation technique for reliable communications in high-mobility scenarios. However, the existing channel esti…
eess.SP2025
Sphere Precoding for Robust Near-Field Communications
Hao Luo, Yu Zhang, Ahmed Alkhateeb
Near-field communication with large antenna arrays promises significant beamforming and multiplexing gains. These communication links, however, are very sensitive to user mobility…
cs.IT2024
Site-Specific Beam Alignment in 6G via Deep Learning
Yuqiang Heng, Yu Zhang, Ahmed Alkhateeb +1
Beam alignment (BA) in modern millimeter wave standards such as 5G NR and WiGig (802.11ay) is based on exhaustive and/or hierarchical beam searches over pre-defined codebooks of wi…