| 2022 | APCC | 2x2 Array Design of ESPAR Antenna for IoT Communication System. | Md. Moklesur Rahman, Heung-Gyoon Ryu |
| 2021 | LANMAN | POSTER: RFID Based WSN Communication System in Interference Channel. | Md. Moklesur Rahman, Heung-Gyoon Ryu |
| 2020 | FNC | Performance Evaluation of OTFS Communication System in Doubly Selective Channel. | Byounghak Park, Heung-Gyoon Ryu |
| 2020 | VTC | Bandwidth Expansion of the IBFD Communication System Using Balanced Feed Networks. | Myunggi Kim, Heung-Gyoon Ryu |
| 2020 | WCNC | Dimension Expansion of OFDM System for the Spectral Efficiency Improvement. | Changyoung An, Heung-Gyoon Ryu |
| 2020 | WCNC | Waveform Design of Low Complexity WR-OTFS System for the OOB Power Reduction. | Md. Najmul Hossain, Yosuke Sugiura, Tetsuya Shimamura, Heung-Gyoon Ryu |
| 2015 | FNC | Robust Digital Retrodirective Beamforming Technique for Multipath Channel Environment. | Changyoung An, Kukhan Jang, Heung-Gyoon Ryu, Jin-Kyu Choi, Hanbyeog Cho |
| 2013 | GPC | Chaotic Wireless Communication System Using Retrodirective Array Antenna for Advanced High Security. | Junyeong Bok, Heung-Gyoon Ryu |
| 2013 | GPC | Improvement of the MCMA Blind Equalization Performance Using the Coordinate Change Method in 16-APSK. | Youngguk Kim, Heung-Gyoon Ryu |
| 2013 | GPC | Automatic Tracking Angle of Arrival of Bandpass Sampling OFDM Signal by MUSIC Algorithm. | Xin Wang, Heung-Gyoon Ryu |
| 2013 | WCNC | Application of full-duplex wireless communication system on echo cancellation. | Faramarz Asharif, Shiro Tamaki, Mohammad Reza Alsharif, Heung-Gyoon Ryu |
| 2013 | WCNC | Frequency domain compressive sensing of multicarrier-based QAPM system. | So-Ra Kim, Heung-Gyoon Ryu |
| 2012 | APCC | Closed-loop satellite communication system for high efficiency transmission. | Junyeong Bok, Heung-Gyoon Ryu, Byung Gak Jo, Gwang Hoon Baek |
| 2011 | GLOBECOM | Combination of QAPM and OFDM for high power efficiency and spectral efficiency. | Jae Hoon Choi, Haeseong Jeong, Heung-Gyoon Ryu |
| 2010 | Broadnets | Detecting TCP Traffic Dynamical Changes in UMTS Networks. | Ioannis Vasalos, Averkios Vasalos, Heung-Gyoon Ryu |
| 2010 | VTC | A Time Domain Inverse Matrix Receiver for CFO Suppression in WIMAX Uplink System. | Xiupei Zhang, Heung-Gyoon Ryu, Jason Gao |
| 2005 | ICITA | Design of Binary Multi-code CDMA System with Constant Amplitude. | Jin Kwan Kim, Sang-Woo Kim, Kee-Hoo Yoon, Heung-Gyoon Ryu |
| 2005 | ICITA | A PAPR Reduction Method Using the Correlation of Information in OFDM Communication System. | Sang-Woo Kim, Hun-Hee Lee, Chan-Ho Park, Rag Gyu Jung, Heung-Gyoon Ryu |
| 2005 | ICITA | PAPR Reduction in MC/DS CDMA System by DFT Spreading Codes. | Yingshan Li, Ju-Hyun Kyung, Jong-Won Son, Heung-Gyoon Ryu |