Deep learning based fingerprint positioning for multi-cell massive MIMO-OFDM systems

X Gong, X Liu, X Fu, X Gao, XG Xia - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this paper, we investigate user terminal (UT) fingerprint positioning for multi-cell massive
multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) …

2D beam domain statistical CSI estimation for massive MIMO uplink

AA Lu, Y Chen, X Gao - IEEE Transactions on Wireless …, 2023 - ieeexplore.ieee.org
In this paper, we investigate the beam domain statistical channel state information (CSI)
estimation for the two-dimensional (2D) beam-based statistical channel model (BSCM) in …

Robust precoding for HF skywave massive MIMO

X Yu, X Gao, AA Lu, J Zhang, H Wu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this paper, we investigate the robust precoding with imperfect channel state information
(CSI) for high frequency (HF) skywave massive multiple-input multiple-output (MIMO) …

Manifold learning inspired dynamic hybrid precoding with antenna partitioning algorithm for dual-hop hybrid fso-rf systems

X Zhou, X Tian, L Tong, Y Wang - IEEE Access, 2022 - ieeexplore.ieee.org
The decode-and-forward (DF) based free-space optical-radio frequency (FSO-RF) hybrid
system combines the advantages of both FSO links and RF links, which makes the system …

Robust Energy-Efficient Transmission for Cell-Free Massive MIMO Systems with Imperfect CSI

W Gao, Y Zhang, L Liu, R Fang, J Sun, L Zhu, Z Zhang - Electronics, 2023 - mdpi.com
In this paper, we investigate a long-term power minimization problem of cell-free massive
multiple-input multiple-output (MIMO) systems. To address this issue and to ensure the …

Semi-Supervised Representation Contrastive Learning for Massive MIMO Fingerprint Positioning

X Gong, AA Lu, X Fu, X Liu, X Gao… - IEEE Internet of Things …, 2023 - ieeexplore.ieee.org
Wireless positioning is crucial for Internet of Things (IoT) landscape, enhancing precision
and reliability in location-based services. This article addresses the challenges of existing …

Structured hybrid message passing based channel estimation for massive MIMO-OFDM systems

X Liu, W Wang, X Gong, X Fu, X Gao… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper investigates uplink channel estimation for massive multi-input multi-output
orthogonal frequency division multiplexing (MIMO-OFDM) systems with uniform planar array …

Robust Symbol-Level Precoding for Massive MIMO Communication Under Channel Aging

Y Wang, X Yi, H Hou, W Wang… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This paper investigates the robust design of symbol-level precoding (SLP) for multiuser
multiple-input multiple-output (MIMO) downlink transmission with imperfect channel state …

Precoder Design for Massive MIMO Downlink With Matrix Manifold Optimization

R Sun, C Wang, AA Lu, X Gao… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
We investigate the weighted sum-rate (WSR) maximization linear precoder design for
massive multiple-input multiple-output (MIMO) downlink. We consider a single-cell system …

Sum-rate-optimal statistical precoding for FDD massive MIMO downlink with deterministic equivalents

YX Zhang, AA Lu, X Gao - IEEE Transactions on Vehicular …, 2022 - ieeexplore.ieee.org
Statisticalprecoding is considered as a promising technique to release the channel state
information (CSI) acquisition overhead. This article investigates a linear precoder design for …