Results 41 to 50 of about 4,393 (215)
Bioengineering, 2023 Low-complexity ultrasound systems are increasingly desired for both wearable, point-of-care ultrasound and high-end massive-channel ultrasound for 3-D matrix imaging.
Heechul Yoon +3 more
doaj +1 more source
2D-OPC Subarray Structure for Efficient Hybrid Beamforming over Sparse mmWave Channels
International Journal of Antennas and Propagation, 2021 Millimeter-wave (mmWave) communication is a key technology of 5G new radio (NR) mobile communication systems. Efficient beamforming using a large antenna array is important to cope with the significant path loss experienced in the mmWave spectrum.
Junhyuk Yoo, Wonjin Sung, In-Kyung Kim
doaj +1 more source
Deep reinforcement learning for hybrid beamforming in multi-user millimeter wave wireless systems [PDF]
, 2021 Publisher Copyright: © 2021 IEEE.This paper proposes a Machine Learning (ML) algorithm for hybrid beamforming in millimeter-wave wireless systems with multiple users.
Alexis A. Dowhuszko +5 more
core +1 more source
Subspace Hybrid MVDR Beamforming for Augmented Hearing
CoRR, 2023 Signal-dependent beamformers are advantageous over signal-independent beamformers when the acoustic scenario - be it real-world or simulated - is straightforward in terms of the number of sound sources, the ambient sound field and their dynamics.
Sina Hafezi +6 more
openaire +2 more sources
Hybrid Beamforming for Multi-User Millimeter-Wave Networks [PDF]
IEEE Transactions on Vehicular Technology, 2020 This paper considers hybrid beamforming by combining an analog beamformer with a new regularized zero forcing baseband one, for multi-user millimeter-wave networks under a limited number of radio frequency (RF) chains. Three popular scenarios are examined: i) the number of users is up to the number of RF chains in a single-cell network, ii) the number ...
Ali Arshad Nasir +4 more
openaire +3 more sources
Alternating minimum mean square error hybrid beamforming algorithm in mmWave MIMO system
Dianxin kexue, 2017 The two-stage hybrid beamforming architecture can solve the problem of limited number of RF chains effectively.However,it is still difficult to design a hybrid beamforming algorithm with better performance.In order to achieve higher spectral efficiency ...
Min SHEN, Hao XU, Yun HE, Pengguang ZHOU
doaj +2 more sources
Taxonomy and Performance Evaluation of Hybrid Beamforming for 5G and Beyond Systems
IEEE Access, 2020 Increasing demand for higher data-rate wireless connectivity with lower latency is fueling the explorations of millimeter-wave (mmWave) spectrum and massive MIMO communications.
Mohamed Rihan +4 more
doaj +1 more source
Precoding and Beamforming Techniques in mmWave-Massive MIMO: Performance Assessment
IEEE Access, 2022 Massive MIMO and mmWave communication are the technologies for achieving 5G design goals. Fortunately, these two technologies share a symbiotic integration.
Tewelgn Kebede +4 more
doaj +1 more source
RSMA Assisted ISAC with Hybrid Beamforming
2025 IEEE Wireless Communications and Networking Conference (WCNC)Conference
Zhuohui Yao +4 more
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Multiple-Beam Selection With Limited Feedback for Hybrid Beamforming in Massive MIMO Systems
IEEE Access, 2017 Hybrid multiple-input multiple-output (MIMO) systems have been thought as a promising technology in future 5G. Compared with conventional digital MIMO systems, such a structure is equipped with fewer RF chains, which would reduce the computational ...
Yuwei Ren +3 more
doaj +1 more source