Results 41 to 50 of about 4,370 (213)

Complex-valued symmetric radial basis function network for beamforming

open access: yes, 2009
The complex-valued radial basis function (RBF) network proposed by Chen et al. (1994) has found many applications for processing complex-valued signals, in particular, for communication channel equalization and signal detection.
Sheng Chen, Chen, Sheng
core   +1 more source

Hybrid Beamforming for Multi-User Millimeter-Wave Networks [PDF]

open access: yesIEEE 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

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

Precoding and Beamforming Techniques in mmWave-Massive MIMO: Performance Assessment

open access: yesIEEE 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

Multi-user hybrid analogue/digital beamforming for relatively large-scale antenna systems

open access: yes, 2014
Power consumption and costs of analogue front-end (AFE) chains are often not negligible for large-scale antenna array systems. A low-complexity hardware architecture is to use a number of AFE chains that are less than the number of antennas.
Xiang, Wei   +4 more
core   +1 more source

RSMA Assisted ISAC with Hybrid Beamforming

open access: yes2025 IEEE Wireless Communications and Networking Conference (WCNC)
Conference
Zhuohui Yao   +4 more
openaire   +2 more sources

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

open access: yesAdvanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang   +9 more
wiley   +1 more source

Sequential Hybrid Beamforming for Radio Stripes

open access: yesIEEE Access
Cell-free (CF) massive multiple-input multiple-output (mMIMO) systems will revolutionize wireless communication by moving away from traditional base stations (BSs). By eliminating conventional cell boundaries, CF mMIMO deploys a large number of distributed access points (APs), enabling seamless connectivity across a wide area, more flexible resource ...
Joumana Kassam   +4 more
openaire   +3 more sources

Multidimensional Radar Waveforms: A New Paradigm for the Design and Operation of Highly Performant Spaceborne Synthetic Aperture Radar Systems

open access: yes, 2007
This paper introduces and analyses the innovative paradigm of multidimensional waveform encoding for spaceborne synthetic aperture radar (SAR). The combination of this technique with digital beamforming on receive enables a new class of highly ...
Alberto Moreira   +5 more
core   +1 more source

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