Compressive sensing-based adaptive active user detection and channel estimation: Massive access meets massive MIMO

M Ke, Z Gao, Y Wu, X Gao… - IEEE transactions on …, 2020 - ieeexplore.ieee.org
This paper considers massive access in massive multiple-input multiple-output (MIMO)
systems and proposes an adaptive active user detection and channel estimation scheme …

Massive access in cell-free massive MIMO-based Internet of Things: Cloud computing and edge computing paradigms

M Ke, Z Gao, Y Wu, X Gao… - IEEE Journal on Selected …, 2020 - ieeexplore.ieee.org
This article studies massive access in cell-free massive multi-input multi-output (MIMO)-
based Internet of Things and solves the challenging active user detection (AUD) and …

Terahertz ultra-massive MIMO-based aeronautical communications in space-air-ground integrated networks

A Liao, Z Gao, D Wang, H Wang, H Yin… - IEEE Journal on …, 2021 - ieeexplore.ieee.org
The emerging space-air-ground integrated network has attracted intensive research and
necessitates reliable and efficient aeronautical communications. This paper investigates …

Wideband beamspace channel estimation for millimeter-wave MIMO systems relying on lens antenna arrays

X Gao, L Dai, S Zhou, AM Sayeed… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Beamspace channel estimation is indispensable for millimeter-wave MIMO systems relying
on lens antenna arrays for achieving substantially increased data rates, despite using a …

Compressive sensing-based joint activity and data detection for grant-free massive IoT access

Y Mei, Z Gao, Y Wu, W Chen, J Zhang… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Massive machine-type communications (mMTC) are poised to provide ubiquitous
connectivity for billions of Internet-of-Things (IoT) devices. However, the required low-latency …

Wideband channel estimation with a generative adversarial network

E Balevi, JG Andrews - IEEE Transactions on Wireless …, 2021 - ieeexplore.ieee.org
Communication at high carrier frequencies such as millimeter wave (mmWave) and
terahertz (THz) requires channel estimation for very large bandwidths at low SNR. Hence …

Data-driven deep learning based hybrid beamforming for aerial massive MIMO-OFDM systems with implicit CSI

Z Gao, M Wu, C Hu, F Gao, G Wen… - IEEE Journal on …, 2022 - ieeexplore.ieee.org
In an aerial hybrid massive multiple-input multiple-output (MIMO) and orthogonal frequency
division multiplexing (OFDM) system, how to design a spectral-efficient broadband multi …

Estimation of broadband multiuser millimeter wave massive MIMO-OFDM channels by exploiting their sparse structure

X Lin, S Wu, C Jiang, L Kuang, J Yan… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
In millimeter wave (mm-wave) massive multiple-input multiple-output (MIMO) systems,
acquiring accurate channel state information is essential for efficient beamforming (BF) and …

Sparse channel estimation via hierarchical hybrid message passing for massive MIMO-OFDM systems

X Liu, W Wang, X Song, X Gao… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this paper, we investigate a sparse channel estimation problem for broadband massive
multiple-input-multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) …

EM-AMP-based joint active user detection and channel estimation in cell-free system

S Jiang, J Dang, Z Zhang, L Wu, B Zhu… - IEEE Systems …, 2023 - ieeexplore.ieee.org
This article considers the massive access problem in an uplink cell-free multiple-input–
multiple-output (MIMO) system where massive potential users communicate with a set of …