34 citations · 89 across the 27 of their papers we have counts for
16 papers · 1 filter
Satellite Clusters Flying in Formation: Orbital Configuration-Dependent Performance Analyses
Dong-Hyun Jung, Joon-Gyu Ryu, Junil Choi
This paper considers a downlink satellite communication system where a satellite cluster, i.e., a satellite swarm consisting of one leader and multiple follower satellites, serves…
WiThRay: A Versatile Ray-Tracing Simulator for Smart Wireless Environments
Hyuckjin Choi, Jaehoon Chung, Jaeky Oh +2
This paper presents the development and evaluation of WiThRay, a new wireless three-dimensional ray-tracing (RT) simulator. RT-based simulators are widely used for generating reali…
Channel Estimation for Reconfigurable Intelligent Surface with a few Active Elements
Gyoseung Lee, Hyeongtaek Lee, Jaeky Oh +2
In this paper, a channel estimation technique for reconfigurable intelligent surface (RIS)-aided multi-user multiple-input single-output communication systems is proposed. By deplo…
Massive MIMO Channel Prediction Using Machine Learning: Power of Domain Transformation
Beomsoo Ko, Hwanjin Kim, Junil Choi
To compensate the loss from outdated channel state information in wideband massive multiple-input multipleoutput (MIMO) systems, channel prediction can be performed by leveraging t…
Coverage Increase at THz Frequencies: A Cooperative Rate-Splitting Approach
Hyesang Cho, Beomsoo Ko, Bruno Clerckx +1
Numerous studies claim that terahertz (THz) communication will be an essential piece of sixth-generation wireless communication systems. Its promising potential also comes with maj…
Radar Imaging Based on IEEE 802.11ad Waveform in V2I Communications
Geonho Han, Junil Choi, Robert W. Heath
Since most of vehicular radar systems are already exploiting millimeter-wave (mmWave) spectra, it would become much more feasible to implement a joint radar and communication syste…