Outage Probability of Underlay Cognitive Radio Networks with SWIPT-Enabled Relay. - Gyeongrae Im; Jae Hong Lee (VTC Fall, 2015)

Outage Probability for Cooperative NOMA Systems With Imperfect SIC in Cognitive Radio Networks. - Gyeongrae Im; Jae Hong Lee (IEEE Commun. Lett., 2019)

Enhancing the Connectivity of Satellite IoT Devices in Terrestrial-Non terrestrial Integrated Networks based on the Stackelberg Game Approach. - Gyeongrae Im; Dong-Hyun Jung; Joon-Gyu Ryu (ICTC, 2020)

Fine Frequency Offset Synchronization Scheme for Internet of Things Devices in 5G non-terrestrial network. - Gyeongrae Im; Joon-Gyu Ryu; Woo-Jin Byun (ICTC, 2021)

Partial CSI based Regularized Zero-Forcing Precoder for Multibeam Satellite Communications toward 6G Networks. - Jinho Kang; Gyeongrae Im; Sooyeob Jung; Joon-Gyu Ryu; Woo-Jin Byun (ICTC, 2021)

Downlink link-level Simulator designs for 3GPP Rel 16 NR Non-Terrestrial Networks. - Gyeongrae Im; Jung-Bin Kim; Joon-Gyu Ryu; Seung Keun Park (APCC, 2022)

Regression based Pilot Design for Doppler Effect Estimation and Compensation in LEO Satellite Communication with LoRa. - Jinho Kang; Gyeongrae Im; Dong-Hyun Jung; Sooyeob Jung; Jung-Bin Kim; Pansoo Kim; Joon-Gyu Ryu (APCC, 2022)

Empowering User Capabilities via Non-Orthogonal Multiple Access in 3GPP Non-Terrestrial Networks. - Gyeongrae Im; Dong-Hyun Jung; Jung-Bin Kim; Joon-Gyu Ryu (ICTC, 2023)

Satellite Clustering for Non-Terrestrial Networks: Concept, Architectures, and Applications. - Dong-Hyun Jung; Gyeongrae Im; Joon-Gyu Ryu; Seungkeun Park; Heejung Yu; Junil Choi (IEEE Veh. Technol. Mag., 2023)

Beam-Hopping Strategy for Efficient Resource Usage in 3GPP Non-Terrestrial Networks. - Gyeongrae Im; Jung-Bin Kim; Joon-Gyu Ryu (ICTC, 2024)

LR-FHSS Transceiver for Direct-to-Satellite IoT Communications: Design, Implementation, and Verification. - Sooyeob Jung; Seongah Jeong; Jinkyu Kang; Gyeongrae Im; Sangjae Lee; Mi-Kyung Oh; Joon-Gyu Ryu; Joonhyuk Kang (CoRR, 2024)