640 citations · 5.3k across the 160 of their papers we have counts for
21 papers · 2 filters
Deep Learning for Massive MIMO CSI Feedback
Chao-Kai Wen, Wan-Ting Shih, Shi Jin
In frequency division duplex mode, the downlink channel state information (CSI) should be sent to the base station through feedback links so that the potential gains of a massive m…
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…
Spectral Efficiency of Multipair Massive MIMO Two-Way Relaying with Hardware Impairments
Jiayi Zhang, Xipeng Xue, Emil Björnson +2
We consider a multipair massive multiple-input multiple-output (MIMO) two-way relaying system, where multiple pairs of single-antenna devices exchange data with the help of a relay…
Finite-Alphabet Precoding for Massive MU-MIMO with Low-resolution DACs
Chang-Jen Wang, Chao-Kai Wen, Shi Jin +1
Massive multiuser multiple-input multiple-output (MU-MIMO) systems are expected to be the core technology in fifth-generation wireless systems because they significantly improve sp…