6 papers
Reinforcement Learning-Based Secure Beamforming Against Satellite Eavesdroppers
Juhwan Seo, Hyesang Cho, Dong-Hyun Jung
This paper investigates physical-layer security for uplink low Earth orbit (LEO) satellite communications in the presence of multiple non-colluding satellite eavesdroppers. Secure…
Multi-User SLNR-Based Precoding With Gold Nanoparticles in Vehicular VLC Systems
Geonho Han, Hyuckjin Choi, Hyesang Cho +3
Visible spectrum is an emerging frontier in wireless communications for enhancing connectivity and safety in vehicular environments. The vehicular visible light communication (VVLC…
Smart Resource Allocation at mmWave/THz Frequencies with Cooperative Rate-Splitting
Hyesang Cho, Junil Choi
In this paper, we propose algorithms to minimize the energy consumption in millimeter wave/terahertz multi-user downlink communication systems. To ensure coverage in blockage-vulne…
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…
IRS-Aided Energy Efficient UAV Communication
Hyesang Cho, Junil Choi
Unmanned aerial vehicles (UAVs) have steadily gained attention to overcome the harsh propagation loss and blockage issue of millimeter-wave communication. However, UAV communicatio…
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…