FDD massive MIMO via UL/DL channel covariance extrapolation and active channel sparsification

MB Khalilsarai, S Haghighatshoar… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
… exploiting the sparse structure of the massive MIMO channel. … M-dimensional user channel
vectors admit a sparse represen… , in order to estimate the channel vectors using Compressed …

Multi-user massive MIMO channel estimation using joint sparsity and non-ideal feedback modeling

N Sadeghi, M Azghani - Digital Signal Processing, 2020 - Elsevier
… In another experiment, we investigate the case where the rows of the angular channel
matrix are not completely joint sparse, ie, they have a common support part as well as a small …

Limited feedback channel estimation in massive MIMO with non-uniform directional dictionaries

PN Alevizos, X Fu, ND Sidiropoulos… - IEEE Transactions …, 2018 - ieeexplore.ieee.org
… limited feedback setup where UE estimates the sparse channel and sends back the support
along with the coarsely quantized nonzero elements of the estimated sparse channel g. …

A block sparsity based estimator for mmWave massive MIMO channels with beam squint

M Wang, F Gao, N Shlezinger… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
… the sparse characteristics of the unknown channel in Subsection III-A. Then, in Subsection
III-B and III-C we exploit this sparse nature to efficiently estimate the unknown channel DOAs …

Channel correlation modeling and its application to massive MIMO channel feedback reduction

J Joung, E Kurniawan, S Sun - IEEE Transactions on Vehicular …, 2016 - ieeexplore.ieee.org
… the limited space of massive MIMO transmitter (Tx) and receiver (Rx) … In this work, we
propose a massive MIMO channel feedback … As we can see in the example, the sparse channel

Compressive sensing-based sparsity adaptive channel estimation for 5G massive MIMO systems

I Khan, M Singh, D Singh - Applied Sciences, 2018 - mdpi.com
… With such a computationally-efficient behavior, the proposed BSAMP algorithm provides
efficient sparse channel estimation capability for 5G massive MIMO systems which also enables …

Downlink compressive channel estimation with phase noise in massive MIMO systems

R Zhang, B Shim, H Zhao - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
… We also propose a channel estimation technique to mitigate PN for massive MIMO systems.
… In this section, we present a sparse signal recovery problem formulation of the channel

Covert communication for spatially sparse mmWave massive MIMO channels

L Bai, J Xu, L Zhou - IEEE Transactions on Communications, 2023 - ieeexplore.ieee.org
… inherent sparsity of the massive MIMO channel, we define a … Firstly, for the sparse mmWave
massive MIMO channel, we … rate formulas for the sparse MIMO channel and the covert …

Spatial denoising for sparse channel estimation in coherent massive MIMO

A Osinsky, A Ivanov, D Yarotsky - 2021 IEEE 94th Vehicular …, 2021 - ieeexplore.ieee.org
sparse channel estimation (CE) for phase-synchronized sub-6G Massive MultipleInput
Multiple-Output (MIMO) … The algorithm employs an iterative search for propagation channel taps, …

Efficient sparse Bayesian channel estimation for near-field ultra-scale massive MIMO systems

J Cao, J Du, M Han, J Liu, X Li… - IEEE Wireless …, 2023 - ieeexplore.ieee.org
… SBL algorithm for grid sparse channel recovery in massive MIMO systems. The … channel
estimation in wideband THz large-scale MIMO systems. Compared with the traditional sparse