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

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...

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Bibliographic Details
Published inProceedings 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
LanguageEnglish
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
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Summary: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 the RIS, and present a fast alignment algorithm for the RIS phase shifts and the transceiver beamformers. Indicative performance evaluation results are shown, verifying the effectiveness of the proposed approach in comparison with various benchmark schemes.
ISSN:2151-870X
DOI:10.1109/SAM53842.2022.9827873