Results 31 to 40 of about 4,041 (226)

Hybrid Beamforming for dual-polarized antenna [PDF]

open access: yes2019 IEEE Wireless Communications and Networking Conference (WCNC), 2019
Recently, dual-polarized antenna has attracted strong attention in Millimeter wave (mmWave) systems. It provides an additional degree-of-freedom in wireless communication, yielding higher throughput. Nowadays, with the development of antenna technology, dual-polarized large scale antenna arrays can be realized inexpensively. However, several challenges
Truong, Dien Hoa   +2 more
openaire   +2 more sources

Robust Hybrid Beamforming in Millimeter Wave Relay Networks With Imperfect CSI

open access: yesIEEE Access, 2018
Millimeter-wave (mmWave) communication offers rich spectrum resources and acts as a key enabling technology for future wireless communication systems. Hybrid (digital and analog) beamforming and relay techniques are important for mmWave implementations ...
Zhen Luo   +3 more
doaj   +1 more source

Sparse-periodic hybrid array beamformer

open access: yesIET Radar, Sonar & Navigation, 2007
A novel approach to the design of spatial arrays is presented. The hybrid array beamformer consists of a sparse array in which some of the elements are arranged periodically, thus creating a periodic sub-array. The outputs of the sparse and periodic arrays are then fused to create a beampattern with good resolution and low peak sidelobe levels.
M.J. Wilson, R. McHugh
openaire   +1 more source

Subspace Hybrid Beamforming for Head-Worn Microphone Arrays

open access: yesICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2023
5 pages, 4 figures, accepted for ICASSP ...
Hafezi, Sina   +6 more
openaire   +2 more sources

Design and Implementation of Analog-Digital Hybrid Beamformers for Low-Complexity Ultrasound Systems: A Feasibility Study

open access: yesBioengineering, 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

open access: yesInternational 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

mmWave V2V Localization in MU-MIMO Hybrid Beamforming

open access: yesIEEE Open Journal of Vehicular Technology, 2022
Recent trends for vehicular localization in millimetre-wave (mmWave) channels include employing a combination of parameters such as angle of arrival (AOA), angle of departure (AOD), and time of arrival (TOA) of the transmitted/received signals.
Jaswinder Lota   +4 more
openaire   +3 more sources

Optimized Shear Wave Generation Using Hybrid Beamforming Methods [PDF]

open access: yesUltrasound in Medicine & Biology, 2014
Elasticity imaging is a medical imaging modality that measures tissue elasticity as an aid in the diagnosis of certain diseases. Shear wave-based methods have been developed to perform elasticity measurements in soft tissue. These methods often use the radiation force mechanism of focused ultrasound to induce shear waves in soft tissue such as liver ...
Alireza, Nabavizadeh   +3 more
openaire   +2 more sources

Alternating minimum mean square error hybrid beamforming algorithm in mmWave MIMO system

open access: yesDianxin 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

open access: yesIEEE 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

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