467 citations · 3.3k across the 111 of their papers we have counts for
10 papers · 1 filter
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…
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…
State Estimation in Smart Distribution System With Low-Precision Measurements
Jung-Chieh Chen, Hwei-Ming Chung, Chao-Kai Wen +2
Efficient and accurate state estimation is essential for the optimal management of the future smart grid. However, to meet the requirements of deploying the future grid at a large…
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…
Local Cyber-physical Attack with Leveraging Detection in Smart Grid
Hwei-Ming Chung, Wen-Tai Li, Chau Yuen +2
A well-designed attack in the power system can cause an initial failure and then results in large-scale cascade failure. Several works have discussed power system attack through fa…
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…
The Distributed MIMO Scenario: Can Ideal ADCs Be Replaced by Low-resolution ADCs?
Jide Yuan, Shi Jin, Chao-Kai Wen +1
This letter considers the architecture of distributed antenna system, which is made up of a massive number of single-antenna remote radio heads (RRHs), some with full-resolution bu…
RaPro: A Novel 5G Rapid Prototyping System Architecture
Xi Yang, Zhichao Huang, Bin Han +4
We propose a novel fifth-generation (5G) rapid prototyping (RaPro) system architecture by combining FPGA-privileged modules from a software defined radio (or FPGA-coprocessor) and…
Bayesian Optimal Data Detector for mmWave OFDM System with Low-Resolution ADC
Hanqing Wang, Chao-Kai Wen, Shi Jin
Orthogonal frequency division multiplexing (OFDM) has been widely used in communication systems operating in the millimeter wave (mmWave) band to combat frequency-selective fading…
Generalized Expectation Consistent Signal Recovery for Nonlinear Measurements
Hengtao He, Chao-Kai Wen, Shi Jin
In this paper, we propose a generalized expectation consistent signal recovery algorithm to estimate the signal from the nonlinear measurements of a linear transform o…