Low-Power Low-VHF Ad-Hoc Networking in Complex Environments. - Jihun Choi 003; Fikadu T. Dagefu; Brian M. Sadler; Kamal Sarabandi (IEEE Access, 2017)

Real-Time Digital Video Streaming at Low-VHF for Compact Autonomous Agents in Complex Scenes. - Jihun Choi 003; Chirag Rao; Fikadu T. Dagefu (VTC Spring, 2019)

Intelligent Reflecting Surface Assisted Covert Communication With Transmission Probability Optimization. - Justin Kong 001; Fikadu T. Dagefu; Jihun Choi 003; Predrag Spasojevic (IEEE Wirel. Commun. Lett., 2021)

Covert Communications in Low-VHF/Microwave Heterogeneous Networks. - Justin Kong 001; Fikadu T. Dagefu; Jihun Choi 003; Predrag Spasojevic; Chryssalenia Koumpouzi (WCNC, 2022)

A Compact Three-Port Antenna With Enhanced Inter-Port Isolation for Polarization and Pattern Diversity. - Jihun Choi 003; Fikadu T. Dagefu (IEEE Access, 2023)

Exploiting Polarization Diversity to Improve Cyclostationary-Based LPD Properties of CDMA. - Chryssalenia Koumpouzi; Fikadu T. Dagefu; Jihun Choi 003; Justin Kong 001; Predrag Spasojevic (IEEE Wirel. Commun. Lett., 2023)

Experimental Analysis of Covert CDMA Against Energy and Cycle Detecting Adversaries. - S. Johnson; Morriel Kasher; Rahul Aggarwal; J. Callinan; M. Elo; Predrag Spasojevic; Fikadu T. Dagefu; Justin Kong 001; Jihun Choi 003; Brian Kim (MILCOM, 2024)

Covert Communications with Simultaneous Multi-Modal Transmission. - Rahul Aggarwal; Justin Kong 001; Terrence J. Moore; Jihun Choi 003; Predrag Spasojevic; Fikadu T. Dagefu (WISEC, 2024)

Covert Communication in Intelligent Reflecting Surface Assisted Networks With a Friendly Jammer. - Justin Kong 001; Fikadu T. Dagefu; Jihun Choi 003; Rahul Aggarwal; Predrag Spasojevic (IEEE Trans. Veh. Technol., 2024)

On Covertness of DSSS Against Energy and Cycle Detectors Under Link QoS Requirements. - Rahul Aggarwal; Fikadu T. Dagefu; Justin Kong 001; Jihun Choi 003; Brian Kim; Predrag Spasojevic (VTC2025-Spring, 2025)