Analog beamforming in MIMO communications with phase shift networks and online channel estimation

V Venkateswaran… - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
… Assume that the narrowband condition holds for all propagation delays (except for a bulk
delay that we will ignore here) so that they can be represented by phase shifts. We can write …

Channel estimation method and phase shift design for reconfigurable intelligent surface assisted MIMO networks

J Mirza, B Ali - … on Cognitive Communications and Networking, 2021 - ieeexplore.ieee.org
… These estimated channels are used to design the phase shifts (passive … for phase shifts
that maximizes the total channel gain at the user. We investigate channel estimation for MIMO

Double deep learning for joint phase-shift and beamforming based on cascaded channels in RIS-assisted MIMO networks

K Li, C Huang, Y Gong, G Chen - IEEE wireless …, 2023 - ieeexplore.ieee.org
network for joint beamforming and phase shift based on cascaded channels in the RIS-assisted
MIMO network. … the RIS phase shift network but also other systems with similar scenarios. …

Calibration of phase shifter network for hybrid beamforming in mmWave massive MIMO systems

X Wei, Y Jiang, Q Liu, X Wang - IEEE Transactions on Signal …, 2020 - ieeexplore.ieee.org
For the millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems, …
The hybrid beamforming relies on a phase shifter network (PSN) in the RF domain to steer …

Low-complexity antenna selection and discrete phase-shifts design in IRS-assisted multiuser massive MIMO networks

Z Abdullah, G Chen, S Lambotharan… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
… its planar surface with certain phase shifts, such that the direct-… AS and phaseshifts design
(PSD) for IRS-mMIMO networks. … beamforming, ie the phaseshifts of reflecting elements at the …

Sum-rate maximization in IRS-assisted wireless-powered multiuser MIMO networks with practical phase shift

R Sun, N Cheng, R Zhang, Y Wang… - IEEE Internet of Things …, 2022 - ieeexplore.ieee.org
MIMO network with the practical phase shiftphase shifters, this article considers a general
IRS-assisted wireless-powered multiuser MIMO IoT network with the practical phase shift

Joint transmit beamforming and phase shift design for reconfigurable intelligent surface assisted MIMO systems

J Wang, H Wang, Y Han, S Jin… - … and Networking, 2021 - ieeexplore.ieee.org
… ing vector u and the phase shift matrix of RIS Φ to maximize the ergodic spectral efficiency
of the RIS-assisted large-scale MIMO system, subject to the maximum total transmit power …

Variable-phase-shift-based RF-baseband codesign for MIMO antenna selection

X Zhang, AF Molisch, SY Kung - IEEE Transactions on Signal …, 2005 - ieeexplore.ieee.org
MIMO system diagram with diversity transmission and FC-MRC reception. (b) PSS-MRC
reception with an r-to-L(L<r)RLC with phase-shift… ; a phaseshift-based antenna selection method …

Channel acquisition for massive MIMO-OFDM with adjustable phase shift pilots

L You, X Gao, AL Swindlehurst… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
… massive MIMO-OFDM systems. In this paper, we propose adjustable phase shift pilots (APSPs)
for massive MIMO… For APSPs, one sequence along with different adjustable phase shifted

Hybrid MIMO architectures for millimeter wave communications: Phase shifters or switches?

R Méndez-Rial, C Rusu, N González-Prelcic… - IEEE …, 2016 - ieeexplore.ieee.org
… architectures based on phase shifting networks and switching networks. Numerical … phase
shifterbased hybrid architectures, we develop a power consumption model for mmWave MIMO