Taein Kwon, Moosun Kim, Jun-Pyo Hong, and Kyeongjun Ko*, "Low Complexity Federated Learning Using Complex and Quaternion Valued Deep Neural Networks" to be submitted to IEEE Transactions on Neural Network and Learning Systems.

Sung-min Woo, Min-Hoo Gong, Yuni Jee,  Seong-Yeon Yoon, So-Jeong Woo, Jaeho Im, Jun-Pyo Hong, Seung-Chan Lim, Kyeongjun Ko, and Joon-Seok Kim, "Dual Workfunction a-Si SGT with Enhanced Current and Early Saturation for CMOS Application", submitted to IEEE Access (Under Revision)

Ilum Byun, Kyeongjun Ko, Dongjin Lee, and Sungsoo Park*, "Field Benchmarking of IEEE 802.11p and LTE-V2X for Degraded-Mode Train-to-Train Communication in Open and GNSS-Denied Railway Environments," accepted to IEEE Access.

P. K. Maduni, Kyeongjun Ko, Jeongil Seo* and Ilmu Byun*, "Hybrid Quantum-Safe Cryptographic Scheme with Secure Key Exchange and Signature Scheme", IEEE Access, vol. 13, pp. 147650-147665, Aug. 2025.

M. Humayun Kabir, MD. Ali Hassan, MD. Shafiqul Islam, Kyeongjun Ko*, and Wonjae Shin*, "PC-DeepNet: A GNSS Positioning Error Minimization Framework Using Permutation-Invariant Deep Neural Network", IEEE Sensors Journal, vol. 25, no. 11, pp. 20764-20777. Apr. 2025.  (IF 4.3, SCIE Top 19.1%).

Kyeongjun Ko, Jungtai Kim, Jaesung Hong, and Moosun Kim*, "Implementation of a Rapid Metro System Utilizing the Existing Infrastructures and High-Performance Trains," Alexandria Engineering Journal, vol. 106, pp. 217-226, Nov. 2024. (IF 6.2, SCIE Top 4.7%).

Juyeop Kim, Dawoon Lim, Ilmu Byun, and Kyeongjun Ko*, "Cross-Link Interference in the 5G Cell Search Procedure : Observation and Field Experiments for Mitigation" ICT Express, vol. 10, no. 4, pp. 810-816, Aug. 2024. (IF 4.1, SCIE Top 23.1%).  

Kyeongjun Ko, M. Humayun Kabir, Jungtai Kim, and Wonjae Shin*, "GDOP-Based Low-Complexity LEO Satellite Subset Selection for Positioning", IEEE Systems Journal, vol. 18, no. 2, pp. 989-996, Jun. 2024. (IF 4.0, SCIE Top 24.7%).

Kyeongjun Ko, Youngju Kim, Yongki Yoon, and Sungsoo Park*, "Field Verification of Wireless Cellular Communication-Based Subway Train Localization", IEEE Transactions on Vehicular Technology, vol. 73, no. 6, pp. 7681-7692, Jun. 2024. (IF: 6.1, SCIE Top 12.2%).

Kyeongjun Ko, Ilmu Byun, Woojin Ahn, and Wonjae Shin*, "Response to ``Comments on High-Speed Train Positioning Using Deep Kalman Filter With 5G NR Signals''", IEEE Transactions on Intelligent Transportation Systems, vol. 25, no. 2, pp. 2170-2171, Feb. 2024.  (IF: 8.5, SCIE Top 2.5%).

Kyeongjun Ko, Ilmu Byun, Woojin Ahn, and Wonjae Shin*, “High-Speed Train Positioning Using Deep Kalman Filter With 5G NR Signals,” IEEE Transactions on Intelligent Transportation Systems, vol. 23, no. 9, pp. 15993-16004, Sept. 2022. (IF: 8.5, SCIE Top 2.5%).

Ashwini K. Arya, Seongjin Kim, Kyeongjun Ko, and Sangheok Kim*, “Antenna for IoT-Based Future Advanced (5G) Railway Communication With End-Fire Radiation,” IEEE Internet Of Things Journal, vol. 9, no. 9, pp. 7036-7042, May. 2022. (IF: 10.6, SCIE Top 2.2%).

Kyeongjun Ko, Ilmu Byun, Jungwoo Lee, and Wonjae Shin*, “Joint Power Allocation and Scheduling Techniques for BER Minimization in Multiuser MIMO Systems,” IEEE Access, vol. 9, pp. 66675-66686, May, 2021. (IF: 3.9, SCIE Top 36.2%)

Taehyung Kim, Kyeongjun Ko, Incheol Hwang, Daesik Hong, Sooyong Choi, and Hanho Wang*, “RSRP-Based Doppler Shift Estimator Using Machine Learning in High-Speed Train Systems,” IEEE Transactions on Vehicular Technology, vol. 70, no. 1, pp. 371-380, Jan. 2021. (IF: 6.8, SCIE Top 14%)

Ashwini K. Arya, Seongjin Kim, Sungik Park, Donghoon Kim, Rehab S. Hassan, Kyeongjun Ko, and Sanghoek Kim*, “Shark-Fin Antenna for Railway Communications in LTE-R, LTE, and Lower 5G Frequency Bands,” Progress In Electromagnetics Research, vol. 167, pp. 83-94, Jul. 2020. (IF: 6.7, SCIE Top 15.1%)

Youngrok Jang, Kyungsik Min, Sangjoon Park, Minchae Jung, Kyeongjun Ko, and Sooyong Choi*, “Dispersed Signal Transmission and Reception Scheme for Full-Duplex Systems,” IEEE Access, vol. 7, pp. 138771-138778, Oct. 2019. (IF: 3.9, SCIE Top 36.2%)

Kyeongjun Ko, Yonghee Han, and Jungwoo Lee*, “Multimode Precoding for Multiuser MIMO Systems With Finite Rate Feedback,” IEEE Wireless Communications Letters, vol. 6, no. 2, pp. 142-145, Apr. 2017. (IF: 6.3, SCIE Top 17.6%)

Kyeongjun Ko, Sungkyu Jung, and Jungwoo Lee*, “Hybrid MU-MISO Scheduling with Limited Feedback using Hierarchical Codebooks,” IEEE Transactions on Communications, vol. 60, no. 4, pp. 1101-1113, Apr. 2012. (IF: 8.3, SCIE Top 9.7%)

Kyeongjun Ko and Jungwoo Lee*, “Multiuser MIMO User Selection Based on Chordal Distance,” IEEE Transactions on Communications, no. 60, vol. 3, pp. 649-654, Mar. 2012. (IF: 8.3, SCIE Top 9.7%)

Kyeongjun Ko and Jungwoo Lee*, “Determinant Based MIMO Scheduling with Reduced Pilot Overhead,” Eurasip Journal on Wireless Communications and Networking, vol. 71, Feb. 2012. (IF: 2.6, SCIE Top 52.5%)

Kyungchul Kim, Kyungjun Ko, and Jungwoo Lee*, “Adaptive Selection of Antenna Grouping and Beamforming for MIMO systems,” Eurasip Journal on Wireless Communications and Networking, vol. 154, Nov. 2011. (IF: 2.6, SCIE Top 52.5%)