Results 21 to 30 of about 308,154 (181)

A low complexity hybrid combiner design for the ill‐conditioned multiuser mmWave massive MIMO uplink

open access: yesIET Communications, 2021
This paper presents a simple and robust hybrid combiner for the multiuser massive multiple‐input multiple‐output (MIMO) uplink. The hybrid beamforming is used in massive MIMO systems to reduce the number of radio frequency chains.
Irfan Ahmed   +2 more
doaj   +1 more source

Vector Modulator-Based Analog Beamforming Using the Least Euclidean Distance Criterion

open access: yesIEEE Access, 2021
In traditional multiple-input multiple-output (MIMO) receivers, radio frequency (RF) front-ends are exposed to interference as no analog spatial filtering is employed before the digital beamforming stage.
Masoud Abbasi Alaei   +2 more
doaj   +1 more source

An Efficient Hybrid Beamforming Design for Massive MIMO Receive Systems via SINR Maximization Based on an Improved Bat Algorithm

open access: yesIEEE Access, 2019
Hybrid analog and digital (HAD) beamforming has been recently receiving considerable deserved attention for practical implementation on the large-scale antenna systems.
Mohammed A. Almagboul   +7 more
doaj   +1 more source

jdassink/beamforming: v1.0.0

open access: yes, 2023
<p><strong>Full Changelog</strong>: https://github.com/jdassink/beamforming/commits/beamforming</p ...
Jelle Assink
core   +1 more source

Analog Beamforming with Antenna Selection for Large-Scale Antenna Arrays [PDF]

open access: yes, 2021
peer reviewedIn large-scale antenna array (LSAA) wireless communication systems employing analog beamforming architectures, the placement or selection of a subset of antennas can significantly reduce the power consumption and hardware complexity. In this
OTTERSTEN, Björn   +9 more
core   +1 more source

Hybrid Beamforming in Massive MIMO for Next-Generation Communication Technology

open access: yesSensors, 2023
Hybrid beamforming is a viable method for lowering the complexity and expense of massive multiple-input multiple-output systems while achieving high data rates on track with digital beamforming.
Shahid Hamid   +7 more
doaj   +1 more source

Adaptive beamforming for large arrays in satellite communications systems with dispersed coverage [PDF]

open access: yes, 2011
Conventional multibeam satellite communications systems ensure coverage of wide areas through multiple fixed beams where all users inside a beam share the same bandwidth. We consider a new and more flexible system where each user is assigned his own beam,
Larue de Tournemine, Cécile   +5 more
core   +1 more source

CMA and soft decision-directed scheme for semi-blind beamforming of QAM systems

open access: yes, 2008
We propose a semi-blind adaptive beamforming approach for wireless systems that employ high-throughput quadrature amplitude modulation signalling schemes.
W. Yao   +5 more
core   +2 more sources

Random beamforming OFDMA for future generation cellular communication systems [PDF]

open access: yes, 2007
This paper presents a downlink performance analysis of a Layered Random Beamforming (LRB) - MIMO-OFDMA Physical Layer (PHY) as applicable to future generation wireless communication systems.
Joe McGeehan   +9 more
core   +1 more source

Multiuser hybrid analog/digital beamforming for relatively large-scale antenna arrays

open access: yes, 2013
Power consumption and costs of the analog 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 is less than the number of the antennas ...
Xiang, Wei   +9 more
core   +1 more source

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