A modified off-grid SBL channel estimation and transmission strategy for RIS-assisted wireless communication systems

M Jian, Y Zhao - 2020 International Wireless Communications …, 2020 - ieeexplore.ieee.org
In this paper, we design a compressed sensing based Uplink/Downlink (UL/DL) channel
estimation (CE) scheme for RIS-aided terahertz MIMO systems and develop an integral …

Estimation of wideband dynamic mmWave and THz channels for 5G systems and beyond

A Brighente, M Cerutti, M Nicoli… - IEEE Journal on …, 2020 - ieeexplore.ieee.org
Millimeter wave (mmWave) wideband channels in a multiple-input multiple-output (MIMO)
transmission are described by a sparse set of impulse responses in the angle-delay, or …

Wideband cell-free mmWave massive MIMO-OFDM: Beam squint-aware channel covariance-based hybrid beamforming

G Femenias, F Riera-Palou - IEEE Transactions on Wireless …, 2021 - ieeexplore.ieee.org
This paper considers the design of beam squint-aware channel covariance-based hybrid
beamformers for wideband cell-free millimeter-wave (mmWave) massive multiple-input …

Tensor-based low-complexity channel estimation for mmWave massive MIMO-OTFS systems

X Wu, S Ma, X Yang - Journal of Communications and …, 2020 - ieeexplore.ieee.org
Orthogonal time frequency space (OTFS) modulation, collaborated with millimeter-wave
(mmWave) massive multiple-input-multiple-output (MIMO), is a promising technology for next …

Data-aided Doppler compensation for high-speed railway communications over mmWave bands

Z Gong, C Li, F Jiang, MZ Win - IEEE Transactions on Wireless …, 2020 - ieeexplore.ieee.org
Millimeter wave communications show great potentials in many applications, one of which is
the high-speed railway (HSR) communication system. However, a major challenge is the …

Angle-domain intelligent reflecting surface systems: Design and analysis

X Hu, C Zhong, Z Zhang - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This paper considers an angle-domain intelligent reflecting surface (IRS) system. We derive
maximum likelihood (ML) estimators for the effective angles from the base station (BS) to the …

Clustered sparse Bayesian learning based channel estimation for millimeter-wave massive MIMO systems

X Wu, S Ma, X Yang, G Yang - IEEE Transactions on Vehicular …, 2022 - ieeexplore.ieee.org
In this article, we present two clustered sparse Bayesian learning (Cluster-SBL) channel
estimation algorithms for millimeter-wave (mmWave) massive multiple-input-multiple-output …

Efficient channel estimation for wideband millimeter wave massive MIMO systems with beam squint

Y Song, Z Gong, Y Chen, C Li - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Massive multiple-input-multiple-output (MIMO) and millimeter wave have been adopted as
the enabling technologies for the 5G and beyond 5G (B5G) systems. A challenging problem …

Localization based on improved sparse Bayesian learning in mmWave MIMO systems

J Fan, X Dou, W Zou, S Chen - IEEE Transactions on Vehicular …, 2021 - ieeexplore.ieee.org
In the existing millimeter-wave (mmWave) wireless positioning systems, the method based
on sparse Bayesian learning (SBL) uses the channel sparsity to estimate the parameters …

Compressive initial access and beamforming training for millimeter-wave cellular systems

H Yan, D Cabric - IEEE journal of selected topics in signal …, 2019 - ieeexplore.ieee.org
Initial access (IA) is a fundamental procedure in cellular systems where user equipment (UE)
detects base station (BS) and acquires synchronization. Due to the necessity of using …