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   Articles with "beamforming" as a keyword



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Water experiment for assessing vibroacoustic beamforming gain for acoustic leak detection in a sodium-heated steam generator

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recommendations! Published in 2019 at "Mechanical Systems and Signal Processing"

DOI: 10.1016/j.ymssp.2019.106332

Abstract: A technique based on vibration measurements has been developed to detect water leaking into sodium in view to improving the monitoring of steam generators. Leak-induced vibrations can be masked by background noise. This problem can… read more here.

Keywords: beamforming; water; sodium; experiment assessing ... See more keywords
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Near-Optimal Design for Hybrid Beamforming in mmWave Massive Multi-User MIMO Systems

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recommendations! Published in 2020 at "IEEE Access"

DOI: 10.1109/access.2020.3009238

Abstract: Millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems can obtain sufficient beamforming gains to combat severe path loss in signal propagation. The hybrid (analog/digital) beamforming with multiple data streams can be utilized to further improve… read more here.

Keywords: mimo systems; mmwave massive; beamforming; hybrid beamforming ... See more keywords
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A Machine Learning Adaptive Beamforming Framework for 5G Millimeter Wave Massive MIMO Multicellular Networks

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recommendations! Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3202640

Abstract: The goal of this paper is to evaluate the performance of an adaptive beamforming approach in fifth-generation millimeter-wave multicellular networks, where massive multiple-input multiple-output configurations are employed in all active base stations of the considered… read more here.

Keywords: beamforming; multicellular networks; machine learning; beamforming framework ... See more keywords
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Sum-Rate Maximization in IRS-Assisted Wireless-Powered Multiuser MIMO Networks With Practical Phase Shift

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recommendations! Published in 2023 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2022.3216449

Abstract: The newly emerging intelligent reflecting surface (IRS) with large-scale passive reflecting elements has great potentials to enhance the performance of wireless-powered Internet of Things (IoT) networks, by manipulating the wireless channel. However, most of the… read more here.

Keywords: wireless; phase shift; beamforming; passive beamforming ... See more keywords
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Hybrid Analog and Digital Beamforming for mmWave OFDM Large-Scale Antenna Arrays

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recommendations! Published in 2017 at "IEEE Journal on Selected Areas in Communications"

DOI: 10.1109/jsac.2017.2698958

Abstract: Hybrid analog and digital beamforming is a promising candidate for large-scale millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems because of its ability to significantly reduce the hardware complexity of the conventional fully digital beamforming schemes… read more here.

Keywords: beamforming; hybrid beamforming; digital beamforming; analog digital ... See more keywords
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Max-Min Optimal Beamforming for Cell-Free Massive MIMO

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recommendations! Published in 2020 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2020.3000067

Abstract: This letter develops an optimum beamforming method for downlink transmissions in cell-free massive multiple-input multiple-output (MIMO) systems, which employ a massive number of distributed access points to provide concurrent services to multiple users. The optimum… read more here.

Keywords: cell free; beamforming; free massive; max min ... See more keywords
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Max-Min Beamforming Design for Heterogeneous Networks With Hardware Impairments

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recommendations! Published in 2021 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2020.3044936

Abstract: Due to the impact of amplifier nonlinearities and phase noise, practical transceivers in heterogeneous networks (HetNets) suffer different degrees of hardware impairments (HWIs), which can non-trivially distort the received signals even with signal compensations. Traditional… read more here.

Keywords: hardware impairments; beamforming; heterogeneous networks; max min ... See more keywords
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Impact of Polarization on Distributed Optical Beamforming

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recommendations! Published in 2023 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2023.3247029

Abstract: In this letter, we propose the concept of distributed optical beamforming and its feasibility requirements. We quantify the importance of polarization beamforming among the beams for maximized beamforming. As a first step towards distributed polarization… read more here.

Keywords: beamforming; optical beamforming; polarization beamforming; impact polarization ... See more keywords
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Machine Learning-Based Beamforming Design for Millimeter Wave IRS Communications With Discrete Phase Shifters

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recommendations! Published in 2022 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2022.3159008

Abstract: In this letter, we investigate an intelligent reflecting surface (IRS)-assisted millimeter-wave multiple-input single-output downlink wireless communication system. By jointly calculating the active beamforming at the base station and the passive beamforming at the IRS, we… read more here.

Keywords: millimeter wave; learning based; beamforming; machine learning ... See more keywords
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Joint Active and Passive Beamforming Design for RIS-Aided IBFD IoT Communications: QoS and Power Efficiency Considerations

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recommendations! Published in 2023 at "IEEE Transactions on Consumer Electronics"

DOI: 10.1109/tce.2022.3223441

Abstract: In a reconfigurable intelligent surface (RIS) aided communication network, a RIS equipped with multiple passive reflecting elements assists in extending the coverage of wireless networks by overcoming the effects of non-line-of-sight propagation. Accordingly, to present… read more here.

Keywords: beamforming; ris aided; joint active; design ... See more keywords
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Asynchronously Coordinated Multi-Timescale Beamforming Architecture for Multi-Cell Networks

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recommendations! Published in 2018 at "IEEE/ACM Transactions on Networking"

DOI: 10.1109/tnet.2017.2766562

Abstract: Modern wireless devices such as smartphones are pushing the demand for higher wireless data rates. The ensuing increase in wireless traffic demand can be met by a denser deployment of access points, coupled with a… read more here.

Keywords: beamforming; coordinated multi; asynchronously coordinated; cell ... See more keywords