Channel feedback based on AoD-adaptive subspace codebook in FDD massive MIMO systems
Channel feedback is essential in frequency division duplexing (FDD) massive multiple-input
multiple-output (MIMO) systems. Unfortunately, prior work on multiuser MIMO has shown that …
multiple-output (MIMO) systems. Unfortunately, prior work on multiuser MIMO has shown that …
Hybrid precoding architecture for massive multiuser MIMO with dissipation: Sub-connected or fully connected structures?
In this paper, we study the hybrid precoding structures over limited feedback channels for
massive multiuser multiple-input multiple-output (MIMO) systems. We focus on the system …
massive multiuser multiple-input multiple-output (MIMO) systems. We focus on the system …
Dimension reduced channel feedback for reconfigurable intelligent surface aided wireless communications
D Shen, L Dai - IEEE Transactions on Communications, 2021 - ieeexplore.ieee.org
Reconfigurable intelligent surface (RIS) has recently received extensive research interest
due to its capability to intelligently change the wireless propagation environment. For RIS …
due to its capability to intelligently change the wireless propagation environment. For RIS …
Computer vision aided codebook design for MIMO communications systems
mmWave communications systems usually rely on analog or hybrid analog/digital
architectures and thus need a predefined codebook to perform beamforming. Traditional …
architectures and thus need a predefined codebook to perform beamforming. Traditional …
Multiuser millimeter wave beamforming strategies with quantized and statistical CSIT
To alleviate the high cost of hardware in mm-wave systems, hybrid analog/digital precoding
is typically employed. In the conventional two-stage feedback scheme, the analog …
is typically employed. In the conventional two-stage feedback scheme, the analog …
A novel ultra-massive MIMO BDCM for 6G wireless communication systems
In this paper, a novel beam domain channel model (BDCM) for sixth generation (6G) ultra-
massive multiple-input multiple-output (MIMO) wireless communication systems is proposed …
massive multiple-input multiple-output (MIMO) wireless communication systems is proposed …
Environment knowledge-aided massive MIMO feedback codebook enhancement using artificial intelligence
The autoencoder empowered by artificial intelligence has shown considerable potential in
solving channel state information (CSI) feedback problems in frequency-division duplexing …
solving channel state information (CSI) feedback problems in frequency-division duplexing …
Novel codebook design for channel state information quantization in MIMO rician fading channels with limited feedback
When a channel consists of a line-of-sight (LoS) path as well as non-LoS components,
codebook design for channel state information (CSI) quantization is required to take account …
codebook design for channel state information (CSI) quantization is required to take account …
Phase shifters versus switches: An energy efficiency perspective on hybrid beamforming
S Payami, NM Balasubramanya… - IEEE Wireless …, 2018 - ieeexplore.ieee.org
Hybrid beamforming architectures provide promising solutions to harness the benefits of
massive multi-input multi-output systems by incorporating phase shifters, switches, or their …
massive multi-input multi-output systems by incorporating phase shifters, switches, or their …
Deep CSI Compression for Dual-Polarized Massive MIMO Channels with Disentangled Representation Learning
Channel state information (CSI) feedback is critical for achieving the promised advantages
of enhancing spectral and energy efficiencies in massive multiple-input multiple-output …
of enhancing spectral and energy efficiencies in massive multiple-input multiple-output …