468 citations · 1.9k across the 64 of their papers we have counts for
8 papers · 1 filter
Polar-Cap Codebook Design for MISO Rician Fading Channels with Limited Feedback
Sung Hyuck Hong, Sucheol Kim, Junil Choi +1
Most of the prior works on designing codebooks for limited feedback systems have not considered the presence of strong line-of-sight (LOS) channel component. This paper proposes th…
Massive MIMO Channel Prediction: Kalman Filtering vs. Machine Learning
Hwanjin Kim, Sucheol Kim, Hyeongtaek Lee +3
This paper focuses on channel prediction techniques for massive multiple-input multiple-output (MIMO) systems. Previous channel predictors are based on theoretical channel models,…
Radar Imaging Based on IEEE 802.11ad Waveform
Geonho Han, Junil Choi
The extension to millimeter-wave (mmWave) spectrum of communication frequency band makes it easy to implement a joint radar and communication system using single hardware. In this…
Alternating Beamforming with Intelligent Reflecting Surface Element Allocation
Hyesang Cho, Junil Choi
Intelligent reflecting surface (IRS) has become a promising technology to aid next generation wireless communication systems. In this paper, we develop an alternating beamforming t…
Noncoherent OOK Symbol Detection with Supervised-Learning Approach for BCC
Jihoon Cha, Junil Choi, David J. Love
There has been a continuing demand for improving the accuracy and ease of use of medical devices used on or around the human body. Communication is critical to medical applications…
Downlink Extrapolation for FDD Multiple Antenna Systems Through Neural Network Using Extracted Uplink Path Gains
Hyuckjin Choi, Junil Choi
When base stations (BSs) are deployed with multiple antennas, they need to have downlink (DL) channel state information (CSI) to optimize downlink transmissions by beamforming. The…