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   Articles with "based beam" as a keyword



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Effect of residual stress distribution in a log on lumber warp due to sawing: a numerical simulation based on the beam theory

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recommendations! Published in 2020 at "Wood Science and Technology"

DOI: 10.1007/s00226-020-01240-y

Abstract: When a squared lumber such as a beam and/or a bearer is produced from a log, they often show warps. Warp of the sawn lumber is practically not serious when the pith is located at… read more here.

Keywords: numerical simulation; residual stress; beam theory; based beam ... See more keywords

Deep Reinforcement Learning Based Beam Selection for Hybrid Beamforming and User Grouping in Massive MIMO-NOMA System

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recommendations! Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3199760

Abstract: This paper presents a deep reinforcement learning-based beam-user selection and hybrid beamforming design for the multiuser massive multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) downlink systems. The conventional hybrid beamforming in massive MIMO provides multiple… read more here.

Keywords: reinforcement learning; beam; based beam; deep reinforcement ... See more keywords

Performance Enhancement via Real-Time Image-Based Beam Tracking for WA-OWC With Dynamic Waves and Mobile Receivers

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recommendations! Published in 2024 at "Journal of Lightwave Technology"

DOI: 10.1109/jlt.2024.3407140

Abstract: Intensified underwater activities have driven the escalating demand for reliable, flexible, and high data-rate underwater communication links. Optical wireless communication (OWC) emerges as the most promising technology for short- to medium-range communication, facilitating the real-time… read more here.

Keywords: real time; beam; dynamic waves; beam tracking ... See more keywords
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Deception Jamming Detection Based on Beam Scanning for Satellite Navigation Systems

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recommendations! Published in 2021 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2021.3083590

Abstract: A scheme for deception jamming detection based on beam scanning is proposed in this letter. This scheme detects the authenticity of the corresponding signal by forming a null in the direction of each visible satellite… read more here.

Keywords: based beam; beam scanning; deception jamming; scheme ... See more keywords

Deep Learning Based Beam Training for Extremely Large-Scale Massive MIMO in Near-Field Domain

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recommendations! Published in 2022 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2022.3210042

Abstract: Extremely large-scale massive multiple-input-multiple-output (XL-MIMO) is regarded as a promising technology for next-generation communication systems. In order to enhance the beamforming gains, codebook-based beam training is widely adopted in XL-MIMO systems. However, in XL-MIMO systems,… read more here.

Keywords: near field; based beam; beam training; field domain ... See more keywords

3D Scene-Based Beam Selection for mmWave Communications

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recommendations! Published in 2020 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2020.3005983

Abstract: In this letter, we present a novel framework of 3D scene based beam selection for mmWave communications that relies only on the environmental data and deep learning techniques. Different from other out-of-band side-information aided communication… read more here.

Keywords: based beam; scene based; beam selection; scene ... See more keywords

A Novel Projection-Based Beam Ray Launching Method for Wireless Channel Modeling

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recommendations! Published in 2025 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2025.3532083

Abstract: In this article, a 3-D projection-based beam ray launching (PB-RL) method is proposed for improving the efficiency of ray-tracing (RT) channel modeling. PB-RL utilizes the projection concept to define two types of ray beams for… read more here.

Keywords: projection; projection based; based beam; beam ray ... See more keywords

Deep Learning-Based Beam Tracking for Millimeter-Wave Communications Under Mobility

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recommendations! Published in 2021 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2021.3107526

Abstract: In this paper, we propose a deep learning-based beam tracking method for millimeter-wave (mmWave) communications. Beam tracking is employed for transmitting the known symbols using the sounding beams and tracking time-varying channels to maintain a… read more here.

Keywords: deep learning; millimeter wave; learning based; beam tracking ... See more keywords

Image-Based Beam Tracking With Deep Learning for mmWave V2I Communication Systems

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recommendations! Published in 2024 at "IEEE Transactions on Intelligent Transportation Systems"

DOI: 10.1109/tits.2024.3438875

Abstract: Effective beam alignment is essential for vehicle-to-infrastructure (V2I) millimeter wave (mmWave) communication systems, particularly in high-mobility vehicle scenarios. This paper explores a three-dimensional (3D) vehicle environment and introduces a novel deep learning (DL)-based beam search… read more here.

Keywords: deep learning; communication systems; image; beam ... See more keywords

Compressive Sensing-Based Beam Alignment Schemes for Time-Varying Millimeter-Wave Channels

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recommendations! Published in 2023 at "IEEE Transactions on Wireless Communications"

DOI: 10.1109/twc.2022.3205702

Abstract: This paper considers the implementation of compressive sensing (CS) approaches for beam alignment (BA) in multiuser millimeter wave (mmWave) MIMO systems. We particularly consider wideband time-varying channels in the practical low SNR regime. We examine… read more here.

Keywords: time; based beam; millimeter wave; time varying ... See more keywords

800  Gb/s/200  m FSO link with a WDM-PAM4 scheme and SLM-based beam tracking technology.

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recommendations! Published in 2021 at "Optics letters"

DOI: 10.1364/ol.418822

Abstract: An 800 Gb/s/200 m free-space optical (FSO) link with a wavelength-division multiplexing (WDM)-four-level pulse amplitude modulation (PAM4) scheme and spatial light modulator (SLM)-based beam tracking technology is constructed. To the best of our knowledge, this… read more here.

Keywords: based beam; fso link; pam4 scheme; beam ... See more keywords