Mobility-Aware Reconstruction Algorithm for Correlated Nonzero Neighborhood Structured Downlink Channel in Massive MIMO
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2808500
Abstract: This paper investigates downlink (DL) channel estimation of frequency division duplex (FDD) massive multiple-input-multiple-output (MIMO) with a finite number of base station (BS) antennas. Based on the performance analysis of DL channel in FDD, it… read more here.
Keywords: estimation; interference; downlink channel; massive mimo ... See more keywords
Low-Complexity Compressed Sensing Downlink Channel Estimation for Multi-Antenna Terminals in FDD Massive MIMO Systems
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3008175
Abstract: In frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems, the overhead of downlink channel estimation is complex in terms of the pilot overhead, the calculation cost and the estimation process. In this paper, we… read more here.
Keywords: mimo; low complexity; downlink channel; complexity ... See more keywords
Deep Learning Based Downlink Channel Covariance Estimation for FDD Massive MIMO Systems
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2021.3075725
Abstract: Obtaining the downlink channel state information in frequency division duplexing (FDD) massive multi-input multi-output (MIMO) systems is challenging due to the overwhelming training and feedback overhead. In this letter, motivated by the existence of mapping… read more here.
Keywords: mimo systems; downlink channel; fdd massive; channel covariance ... See more keywords
Low-Complexity Downlink Channel Estimation for Millimeter-Wave FDD Massive MIMO Systems
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2019.2907955
Abstract: Downlink channel estimation in millimeter-wave (mmWave) frequency division duplex (FDD) massive multiple input multiple output (MIMO) systems is investigated in this letter. Considering the sparse scattering nature of the mmWave channels, the estimation problem is… read more here.
Keywords: downlink channel; channel estimation; estimation millimeter; complexity ... See more keywords
Deep Learning-Based Downlink Channel Estimation for FDD Massive MIMO Systems
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2023.3240512
Abstract: This letter is concerned with the downlink channel estimation in frequency division duplex (FDD) massive multiple-input multiple-output (MIMO) system. With the number of antennas increased, acquiring the downlink channel state information (CSI) becomes complex, thus… read more here.
Keywords: downlink channel; channel estimation; fdd massive; deep learning ... See more keywords
CAnet: Uplink-Aided Downlink Channel Acquisition in FDD Massive MIMO Using Deep Learning
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2021.3120294
Abstract: In frequency-division duplexing systems, the downlink channel state information (CSI) acquisition scheme leads to high training and feedback overhead. In this work, we propose an uplink-aided downlink channel acquisition framework using deep learning to reduce… read more here.
Keywords: aided downlink; acquisition; channel acquisition; downlink channel ... See more keywords
Distributed Machine Learning Based Downlink Channel Estimation for RIS Assisted Wireless Communications
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3175175
Abstract: The downlink channel estimation requires a huge pilot overhead in the reconfigurable intelligent surface (RIS) assisted communication system. By exploiting the powerful learning ability of the neural network, the machine learning (ML) technique can be… read more here.
Keywords: neural network; downlink channel; channel estimation; estimation ... See more keywords
FDD Massive MIMO Channel Estimation With Arbitrary 2D-Array Geometry
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Signal Processing"
DOI: 10.1109/tsp.2018.2807390
Abstract: This paper addresses the problem of downlink channel estimation in frequency-division duplexing massive multiple-input multiple-output systems. The existing methods usually exploit hidden sparsity under a discrete Fourier transform (DFT) basis to estimate the downlink channel.… read more here.
Keywords: array; downlink channel; channel estimation; channel ... See more keywords
Downlink Channel Estimation for Massive MIMO Systems Relying on Vector Approximate Message Passing
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2019.2904405
Abstract: To reduce the pilot overhead of downlink channel estimation in massive multiple-input–multiple-output (MIMO) systems, a sparse recovery algorithm relying on the vector approximate message passing (VAMP) technique is proposed. More specifically, an a-priori channel model… read more here.
Keywords: downlink channel; mimo systems; channel estimation; estimation massive ... See more keywords
Downlink Channel Tracking for Intelligent Reflecting Surface-Aided FDD MIMO Systems
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2021.3063138
Abstract: Intelligent reflecting surfaces (IRSs) can improve the wireless link between the transmitter and receiver by configuring the propagation environments of the system. In order to achieve intelligence of the configuration, the channel state information is… read more here.
Keywords: mimo; downlink channel; channel estimation; channel tracking ... See more keywords
Downlink Channel Estimation for FDD Massive MIMO Using Conditional Generative Adversarial Networks
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2022.3191605
Abstract: For implementation of massive multiple-input multiple-output (MIMO) cellular systems in frequency division duplex (FDD) mode, accurate estimation of downlink channel state information (CSI) is necessary, but full radio channel reciprocity between the uplink and downlink… read more here.
Keywords: downlink channel; fdd massive; mimo; massive mimo ... See more keywords