Near-Field Hierarchical Beam Management for RIS-Enabled Millimeter Wave Multi-Antenna Systems

• Published in: Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop pp. 460 - 464
• Main Authors: Alexandropoulos, George C., Jamali, Vahid, Schober, Robert, Poor, H. Vincent
• Format: Conference Proceeding
• Language: English
• Published: IEEE 20.06.2022
• Subjects: beam management; Communication systems; Conferences; hierarchical codebook; millimeter wave; near-field regime; Performance evaluation; Reconfigurable intelligent surfaces; Signal processing algorithms; Surface waves; Transceivers
• ISSN: 2151-870X
• DOI: 10.1109/SAM53842.2022.9827873

In this paper, we present a low overhead beam management approach for near-field millimeter-wave multi-antenna communication systems enabled by Reconfigurable Intelligent Surfaces (RISs). We devise a novel variable-width hierarchical phase-shift codebook suitable for both the near- and far-field of...