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   Articles with "mmwave mimo" as a keyword



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Resisting Malicious Eavesdropping: Physical Layer Security of mmWave MIMO Communications in Presence of Random Blockage

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recommendations! Published in 2022 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2022.3153054

Abstract: Millimeter wave (Mmwave) communication can realize high rate service for the upcoming Internet of Things (IoT) networks. Although directional multiantenna gains can help enhance security, randomly distributed eavesdroppers can still intercept confidential messages by residing… read more here.

Keywords: layer security; security mmwave; random blockage; physical layer ... See more keywords
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Dynamic Hybrid Beamforming With Low-Resolution PSs for Wideband mmWave MIMO-OFDM Systems

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recommendations! Published in 2020 at "IEEE Journal on Selected Areas in Communications"

DOI: 10.1109/jsac.2020.3000878

Abstract: Analog/digital hybrid beamforming is considered as a key enabling multiple antenna technology for implementing millimeter wave (mmWave) multiple-input multiple-output (MIMO) communications since it can reduce the number of costly and power-hungry radio frequency (RF) chains… read more here.

Keywords: mmwave mimo; low resolution; pss; hybrid beamforming ... See more keywords

Channel Estimation for Wideband mmWave MIMO OFDM System Exploiting Block Sparsity

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recommendations! Published in 2022 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2022.3148911

Abstract: In this letter, we investigate time-domain channel estimation for wideband millimeter wave (mmWave) MIMO OFDM system. By transmitting frequency-domain pilot symbols as well as different beamforming vectors, we observe that the time-domain mmWave MIMO channels… read more here.

Keywords: wideband; sparsity; channel estimation; mmwave mimo ... See more keywords
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Mitigating Intended Jamming in mmWave MIMO by Hybrid Beamforming

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recommendations! Published in 2019 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2019.2932068

Abstract: Research on millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) has received much attention. However, due to the propagation characteristics of mmWave, signals will suffer from a significant loss over long range transmission. The mmWave MIMO system… read more here.

Keywords: intended jamming; mitigating intended; mmwave mimo; jamming mmwave ... See more keywords
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Low-Complexity Reconfigurable MIMO for Millimeter Wave Communications

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recommendations! Published in 2018 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2018.2860003

Abstract: The performance of millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems is limited by the sparse nature of propagation channels and the restricted number of radio frequency chains at transceivers. The introduction of reconfigurable antennas offers… read more here.

Keywords: low complexity; millimeter wave; mmwave mimo; reconfigurable antennas ... See more keywords
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OTFS Transceiver Design and Sparse Doubly-Selective CSI Estimation in Analog and Hybrid Beamforming Aided mmWave MIMO Systems

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recommendations! Published in 2022 at "IEEE Transactions on Wireless Communications"

DOI: 10.1109/twc.2022.3188040

Abstract: Orthogonal time frequency space (OTFS) waveform based millimeter wave (mmWave) MIMO systems are capable of achieving high data rates in high-mobility scenarios. Hence, transceivers are designed for both analog beamforming (AB) and hybrid beamforming (HB),… read more here.

Keywords: csi estimation; mmwave mimo; mimo systems; csi ... See more keywords
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Compressive Beam and Channel Tracking With Reconfigurable Hybrid Beamforming in mmWave MIMO OFDM Systems

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

DOI: 10.1109/twc.2022.3202160

Abstract: An efficient beam and channel acquisition and tracking scheme is developed under a reconfigurable hybrid beamforming (R-HBF) architecture for wideband millimeter wave (mmWave) multiple input multiple output (MIMO) systems. Under such an R-HBF, a hierarchical… read more here.

Keywords: channel; beam; beam channel; mmwave mimo ... See more keywords