Cell-free massive MIMO-OFDM for high-speed train communications

J Zheng, J Zhang, E Björnson, Z Li… - IEEE Journal on Selected …, 2022 - ieeexplore.ieee.org
Cell-free (CF) massive multiple-input multiple-output (MIMO) systems show great potentials
in low-mobility scenarios, due to cell boundary disappearance and strong macro diversity …

A review on orthogonal time–frequency space modulation: State-of-art, hotspots and challenges

M Li, W Liu, J Lei - Computer Networks, 2023 - Elsevier
High-speed mobility communication is one of the challenging scenarios because of the
rapidly changing channel involved. In light of this, the orthogonal time–frequency space …

OTFS signaling for SCMA with coordinated multi-point vehicle communications

Y Ge, Q Deng, D González, YL Guan… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
This paper investigates an uplink coordinated multi-point (CoMP) coverage scenario, in
which multiple mobile users are grouped for sparse code multiple access (SCMA), and …

Channel estimation for high-speed railway wireless communications: A generative adversarial network approach

Q Zhang, H Dong, J Zhao - Electronics, 2023 - mdpi.com
In high-speed railways, the wireless channel and network topology change rapidly due to
the high-speed movement of trains and the constant change of the location of …

Location-fair beamforming for high speed railway communication systems

X Liu, D Qiao - IEEE Access, 2018 - ieeexplore.ieee.org
In this paper, transmission scheme for the base station with a large number of antennas in
the high-speed train (HST) networks in the presence of Doppler shift is considered. A …

A novel non-stationary high-speed train (HST) channel modeling and simulation method

Y Bi, J Zhang, Q Zhu, W Zhang, L Tian… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
With the rapid development of high-speed train (HST), the HST wireless communication
systems have been attracting an increasing amount of attention. For the design …

Multilevel Redundant Discrete Wavelet Transform (ML-RDWT) and optimal Red Deer algorithm (ORDA) centred approach to mitigate the effect of ICI, BER and CIR in …

K Nagarajan, S Sophia - Wireless Personal Communications, 2022 - Springer
Nowadays, there is a great demand for ultra-high data rate (UHDR) transmission on most
5th generation wireless networks. In this concern, the multiple-input multiple-output …

Uplink performance of high-mobility cell-free massive MIMO-OFDM systems

J Zheng, J Zhang, E Shi, J Jiang… - ICC 2022-IEEE …, 2022 - ieeexplore.ieee.org
High-speed train (HST) communications with orthogonal frequency division multiplexing
(OFDM) techniques have received significant attention in recent years. Besides, cell-free …

Effect of Beam Angle of the Transmitting Antenna on Radio Wave Coverage in the Region Containing Tunnel Entrance

Z Zhao, J Wang, W Hou - IEEE Access, 2022 - ieeexplore.ieee.org
Radio wave coverage in open-confined mixed space along the railway is studied in this
paper. The space along the railway can be classified into three kinds of spaces, that are …

[HTML][HTML] A reconstruction and recovery network-based channel estimation in high-speed railway wireless communications

Q Zhang, Y Zhao, H Dong, J Zhao - Digital Communications and Networks, 2024 - Elsevier
The integration of high-speed railway communication systems with 5G technology is widely
recognized as a significant development. Due to the considerable mobility of trains and the …