311 citations · 1.6k across the 76 of their papers we have counts for
9 papers · 1 filter
Multiple Residual Dense Networks for Reconfigurable Intelligent Surfaces Cascaded Channel Estimation
Yu Jin, Jiayi Zhang, Chongwen Huang +4
Reconfigurable intelligent surface (RIS) constitutes an essential and promising paradigm that relies programmable wireless environment and provides capability for space-intensive c…
Deep Learning-Based Power Control for Uplink Cell-Free Massive MIMO Systems
Yongshun Zhang, Jiayi Zhang, Yu Jin +2
In this paper, a general framework for deep learning-based power control methods for max-min, max-product and max-sum-rate optimization in uplink cell-free massive multiple-input m…
Uplink Performance of Cell-Free Massive MIMO Over Spatially Correlated Rician Fading Channels
Zhe Wang, Jiayi Zhang, Emil Björnson +1
We consider a practical cell-free massive multiple-input-multiple-output (MIMO) system with multi-antenna access points (APs) and spatially correlated Rician fading channels. The s…
Uplink Performance of Cell-Free Massive MIMO with Multi-Antenna Users Over Jointly-Correlated Rayleigh Fading Channels
Zhe Wang, Jiayi Zhang, Bo Ai +2
In this paper, we investigate a cell-free massive MIMO system with both access points (APs) and user equipments (UEs) equipped with multiple antennas over jointly-correlated Raylei…
Applications of Reconfigurable Intelligent Surface in Smart High Speed Train Communications
Yajun Zhao, Jiayi Zhang, Bo Ai
Reconfigurable intelligent surface (RIS) is one of the most promising technologies for 5G-Adv and 6G. It has the characteristics of low cost, low complexity, and easy deployment, w…
UAV Communications with WPT-aided Cell-Free Massive MIMO Systems
Jiakang Zheng, Jiayi Zhang, Bo Ai
Cell-free (CF) massive multiple-input multiple-output (MIMO) is a promising solution to provide uniform good performance for unmanned aerial vehicle (UAV) communications. In this p…
Impact of Channel Aging on Cell-Free Massive MIMO Over Spatially Correlated Channels
Jiakang Zheng, Jiayi Zhang, Emil Björnson +1
In this paper, we investigate the impact of channel aging on the performance of cell-free (CF) massive multiple-input multiple-output (MIMO) systems with both spatial correlation a…
A Survey on User-Centric Cell-Free Massive MIMO Systems
Shuaifei Chen, Jiayi Zhang, Jing Zhang +2
The mobile data traffic has been exponentially growing during the last decades, which has been enabled by the densification of the network infrastructure in terms of increased cell…
RIS-Aided Next-Generation High-Speed Train Communications: Challenges, Solutions, and Future Directions
Heng Liu, Jiayi Zhang, Qingqing Wu +3
High-speed train (HST) communication is a very challenging scenario in wireless communication systems due to its fast time-varying channels and significant penetration loss. Thanks…