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Initial Access & Beam Alignment for mmWave and Terahertz Communications

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3 Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3161951

Abstract: The initial access in Millimeter wave (mmWave) 5G communications is very challenging and time consuming. In general, mmWave and terahertz communications require the use of directional antennas to seek narrow beams. However, due to this… read more here.

Keywords: alignment; initial access; terahertz; beam alignment ... See more keywords

Multi-beam scanning antenna system based on beamforming metasurface for fast 5G NR initial access

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1 Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3183754

Abstract: Fifth-generation (and beyond) networks are characterized by ever more demanding requirements in terms of speed, bandwidth, and number of servable users. Fast and reliable access to the main network is mandatory, requiring technologies and procedures… read more here.

Keywords: system; beam scanning; beamforming metasurface; initial access ... See more keywords

Secure Initial Access and Beam Alignment Using Deep Learning in 5G and Beyond Systems

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0 Published in 2024 at "IEEE Access"

DOI: 10.1109/access.2023.3347502

Abstract: 5G and beyond networks will require fast, energy efficient, and secure initial access. In this study, a deep learning-based secure initial beam selection method is proposed that ranks the beam pairs between a transmitter and… read more here.

Keywords: deep learning; initial access; beam; secure initial ... See more keywords

Position-Aided Beam Learning for Initial Access in mmWave MIMO Cellular Networks

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2 Published in 2022 at "IEEE Systems Journal"

DOI: 10.1109/jsyst.2020.3027757

Abstract: In this article, beam learning based on position information (PI) about mobile station positions in the initial access (IA) of millimeter wave (mmWave) multiple-input–multiple-output (MIMO) cellular networks is investigated. The existing PI-based IA procedure cannot… read more here.

Keywords: initial access; beam learning; mimo cellular; position ... See more keywords

Machine Learning Codebook Design for Initial Access and CSI Type-II Feedback in Sub-6-GHz 5G NR

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0 Published in 2024 at "IEEE Transactions on Wireless Communications"

DOI: 10.1109/twc.2023.3331313

Abstract: Beam codebooks are a recent feature to enable high dimension multiple-input multiple-output in 5G. Codebooks comprised of customizable beamforming weights can be used to transmit reference signals and aid the channel state information (CSI) acquisition… read more here.

Keywords: initial access; feedback; codebook design; codebook ... See more keywords