516 citations · 1.7k across the 101 of their papers we have counts for
11 papers · 2 filters
Robust Beamforming for Physical Layer Security in BDMA Massive MIMO
Fengchao Zhu, Feifei Gao, Hai Lin +2
In this paper, we design robust beamforming to guarantee the physical layer security for a multiuser beam division multiple access (BDMA) massive multiple-input multiple-output (MI…
Deep Learning for Wireless Physical Layer: Opportunities and Challenges
Tianqi Wang, Chao-Kai Wen, Hanqing Wang +3
Machine learning (ML) has been widely applied to the upper layers of wireless communication systems for various purposes, such as deployment of cognitive radio and communication ne…
Channel Estimation for TDD/FDD Massive MIMO Systems with Channel Covariance Computing
Hongxiang Xie, Feifei Gao, Shi Jin +2
In this paper, we propose a new channel estimation scheme for TDD/FDD massive MIMO systems by reconstructing uplink/downlink channel covariance matrices (CCMs) with the aid of arra…
Spatial- and Frequency-Wideband Effects in Millimeter-Wave Massive MIMO Systems
Bolei Wang, Feifei Gao, Shi Jin +2
When there are a large number of antennas in massive MIMO systems, the transmitted wideband signal will be sensitive to the physical propagation delay of electromagnetic waves acro…
Beamspace Channel Estimation in mmWave Systems via Cosparse Image Reconstruction Technique
Jie Yang, Chao-Kai Wen, Shi Jin +1
This paper considers the beamspace channel estimation problem in 3D lens antenna array under a millimeter-wave communication system. We analyze the focusing capability of the 3D le…
Angle-Domain Doppler Pre-Compensation for High-Mobility OFDM Uplink with a Massive ULA
Wei Guo, Weile Zhang, Pengcheng Mu +2
In this paper, we propose a Doppler pre-compensation scheme for high-mobility orthogonal frequency division multiplexing (OFDM) uplink, where a high-speed terminal transmits signal…