8 papers
Efficient Near Field Beam Tracking via Thompson Sampling
Junchi Liu, Zijun Wang, Shawn Tsai +1
The shift to the radiative near field region due to large antenna arrays necessitates beamforming that accounts for both angle and range, evolving mobility management into a joint…
Efficient, Adaptive Near-Field Beam Training based on Linear Bandit
Junchi Liu, Zijun Wang, Rui Zhang
This paper proposes a posterior sampling-based beam training framework for near-field communication under multi-path channels. By leveraging Thompson Sampling (TS), the framework a…
GP Bandit-Assisted Two-Stage Sparse Phase Retrieval for Amplitude-Only Near-Field Beam Training
Zijun Wang, Shawn Tsai, Ye Hu +1
The transition to Extremely Large Antenna Arrays (ELAA) in 6G introduces significant near-field effects, necessitating robust near-field beam training strategies in multi-path envi…
Compressive Beam-Pattern-Aware Near-field Beam Training via Total Variation Denoising
Zijun Wang, Maria Nivetha A, Ye Hu +1
Extremely large antenna arrays envisioned for 6G incurs near-field effect, where steering vector depends on angles and range simultaneously. Polar-domain near-field codebooks can f…
Cross-Layer Design for Near-Field mmWave Beam Management and Scheduling under Delay-Sensitive Traffic
Zijun Wang, Anjali Omer, Jacob Chakareski +2
Next-generation wireless networks will rely on mmWave/sub-THz spectrum and extremely large antenna arrays (ELAAs). This will push their operation into the near field where far-fiel…
Precise Near-Field Beam Training with DFT Codebook based on Amplitude-only Measurement
Zijun Wang, Shawn Tsai, Rama Kiran +1
Extremely large antenna arrays (ELAAs) operating in high-frequency bands have spurred the development of near-field communication, driving advancements in beam training and signal…