468 citations · 1.9k across the 64 of their papers we have counts for
5 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…
EMC2-Net: Joint Equalization and Modulation Classification based on Constellation Network
Hyun Ryu, Junil Choi
Modulation classification (MC) is the first step performed at the receiver side unless the modulation type is explicitly indicated by the transmitter. Machine learning techniques h…
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…
Satellite Clustering for Non-Terrestrial Networks: Concept, Architectures, and Applications
Dong-Hyun Jung, Gyeongrae Im, Joon-Gyu Ryu +3
Recently, mega-constellations with a massive number of low Earth orbit (LEO) satellites are being considered as a possible solution for providing global coverage due to relatively…