(*: Corresponding author)

[Submitted]

1. Joon-Young Park, Byungju Lim*, and Young-Chai Ko*, "Effect of LoS and NLoS Propagations on Coverage Performance of LEO Satellite Networks," Submitted to IEEE Wireless Communications Letters

2. Ji-Woon Lee, Byungju Lim*, Ki-Hun Kim, Jong-Man Lee, Young-Seok Ha, Young-Jin Han, and Young-Chai Ko*, "Handover Strategy for LEO Satellite Communications Using Graph Neural Networks," Submitted to IEEE Wireless Communications Letters

3. Julius Ssimbwa, Byungju Lim*, and Young-Chai Ko*, "QoS-Aware User Selection and Resource Assignment for Coexistence of NR-U and Wi-Fi-Enabled IoT Networks", Under revision in IEEE Internet of Things (IoT) Journal

4. Dong-Hwee Kim, Byungju Lim*, and Young-Chai Ko, "Two Stage Beam Management for High Speed Multi-UAV Communications with Doppler Shift," Under revision in IEEE Transactions on Vehicular Technology

5. Seok-Hyun Yoon, Byungju Lim*, and Mai Vu, and Young-Chai Ko*, "Joint Duplex Mode Selection and Beamforming Design for Hybrid-Duplex Integrated Access and Backhaul (IAB)," Submitted to IEEE Transactions on Wireless Communications

[Published]

1. Hong-Seol Cha, Byungju Lim*, and Young-Chai Ko*, "Beam Pointing Optimization for Spatial Diversity MIMO Free Space Optical Communications", To appear in Optics Communications

2. Seok-Hyun Yoon, Byungju Lim*, and Young-Chai Ko, "IRS-Assisted Interference Mitigation for Full-Duplex IAB Network," To appear in IEEE Wireless Communications Letters

3. Joon-Young Lee, Byungju Lim*, and Young-Chai Ko*, "Performance Analysis of Multi-Hop Low Earth Orbit Satellite Network Over Mixed RF/FSO Links" To appear in ICT Express

4. Alireza Alizadeh, Byungju Lim*, and Mai Vu, “Multi-Agent Q-Learning for Real-Time Load Balancing User Association and Handover in Mobile Networks,” To appear in IEEE Transactions on Wireless Communications

5. Byungju Lim* and Mai Vu, “Interference Analysis for Coexistence of Terrestrial Cellular Networks with Satellite Services,” IEEE Transactions on Wireless Communications, vol. 23, no. 4, pp. 3146-3161, Apr. 2024.

6. Byungju Lim, Won Joon Yun, Joongheon Kim, and Young-Chai Ko*, “Joint User Clustering, Beamforming, and Power Allocation for mmWave-NOMA with Imperfect SIC,” IEEE Transactions on Wireless Communications, vol. 23, no. 3, pp. 2025-2038, Mar. 2024.

7. Seok-Hyun Yoon, Byungju Lim*, Mai Vu, and Young-Chai Ko*, "Joint User Selection and Beamforming Design for Multi-IRS aided Internet-of-Things Networks," IEEE Transactions on Vehicular Technology, vol. 73, no. 2, pp. 2076-2092, Feb. 2024.

8. Byungju Lim, Ju-Hyung Lee, Jae-Hong Kwon, Ki-Hun Kim, Jong-Man Lee, Hyun Park, Young-Seok Ha, Young-Jin Han, and Young-Chai Ko*, “Joint Association and Resource Allocation for Multi-Hop Integrated Access and Backhaul (IAB) Network,” Journal of Communications and Networks, vol. 25, no. 4, pp. 440-455, Aug. 2023.

9. Byungju Lim* and Mai Vu, “Distributed Multi-Agent Deep Q-Learning for Load Balancing User Association in Ultra-Dense Network,” IEEE Wireless Communications Letters, vol. 12, no. 7, pp. 1120-1124, Jul. 2023.

10. Byungju Lim, Won Joon Yun, Joongheon Kim, and Young-Chai Ko*, “Joint Pilot Design and Channel Estimation using Deep Residual Learning for Multi-Cell Massive MIMO under Hardware Impairments,” IEEE Transactions on Vehicular Technology, vol. 71, no. 7, pp. 7599-7612, Jul. 2022.

11. Jae-Hong Kwon, Byungju Lim*, and Young-Chai Ko*, “Resource Allocation and System Design of Out-Band Based Integrated Access and Backhaul Network at mmWave Band,” IEEE Transactions on Vehicular Technology, vol. 71, no. 6, pp. 6503-6517, Jun. 2022.

12. Julius Ssimbwa, Byungju Lim, and Young-Chai Ko*, “GFDM Frame Design for Low-Latency Industrial Networks,” Journal of Communications and Networks, vol. 24, no. 3, pp. 336-346, Jun. 2022.

13. Julius Ssimbwa, Byungju Lim, Ju-Hyung Lee, and Young-Chai Ko*, "A Survey on Robust Modulation Requirements for The Next Generation Personal satellite communications," Frontiers in Communications and Networks, vol. 3, May. 2022.

14. Jae-Won Kim, Byungju Lim, and Young-Chai Ko*, “A Rapid Serial Timing Acquisition Algorithm for Hybrid DS/FFH Packet Radio Communication,” IEEE Transactions on Aerospace and Electronic Systems., vol. 57, no. 2, pp. 1016-1027, Apr. 2021.

15. Byungju Lim, Sung Sik Nam*, Mohamed-Slim Alouini, and Young-Chai Ko*, “CDF-Based Multiuser Scheduling for Downlink Non-Orthogonal Multiple Access (NOMA),” IEEE Access, vol. 8, pp. 140533-140545, Jul. 2020.

16. Byungju Lim, Sung Sik Nam, Young-Chai Ko*, and Mohamed-Slim Alouini, “Outage Analysis for Downlink Non-Orthogonal Multiple Access (NOMA) with CDF-Based Scheduling,” IEEE Wireless Communications Letters, vol. 9, no. 6, Jun. 2020.

17. Byungju Lim and Young-Chai Ko*, "Multiuser Interference Cancellation for GFDM with Timing and Frequency Offsets," IEEE Transactions on Communications, vol. 67, no. 6, pp. 4337-4349, Jun. 2019.

18. Kwang Soon Kim*, Dong Ku Kim, Chan-Byoung Chae, Sunghyun Choi, Young-Chai Ko, Jong Hyun Kim, Yeon-Geun Lim, Minho Yang, Sundo Kim, Byungju Lim, Kwanghoon Lee, and Kyung Lin Ryu, “Ultra-Reliable and Low-Latency Communication Techniques for Tactile Internet Services," Proceedings of the IEEE, vol. 107, no. 2, pp. 376-393, Feb. 2019.

19. Byungju Lim and Young-Chai Ko*, "SIR Analysis of OFDM and GFDM Waveforms with Timing Offset, CFO and Phase Noise," IEEE Transactions on Wireless Communications, Vol. 16, No. 10, pp. 6979-6990, Oct. 2017.

20. Byungju Lim and Young-Chai Ko*, “Analysis of Timing and Frequency Offsets on OFDM systems for Fractional Sampling Rate,”  IEICE Transactions on Communications, Vol. E100-B, No. 10, pp. 1946-1951, Oct. 2017. 

1. Dong-Hwee Kim, Byungju Lim, and Young-Chai Ko, "Beam Tracking Using Monopulse Signal for UAV Communications With Doppler Shift", in Proc. International Conference on ICT Convergence (ICTC), Jeju Islang, South Korea, Oct. 11-13, 2023.

2. Byungju Lim and Mai Vu, "Graph Neural Network Based Beamforming and RIS Reflection Design in A Multi-RIS Assisted Wrieless Network", in Proc. IEEE Statistical Signal Processing (SSP) Workshop, Hanoi, Vietnam, Jul. 2-5, 2023.

3. Byungju Lim and Mai Vu, "Low Complexity Joint User Association, Beamforming, and RIS Reflection Optimization for Load Balancing in a Multi-RIS Assisted Netowrk," in Proc. IEEE Wireless Communications and Networing Conference (WCNC) Workshop, Glasgow, Scotland, UK, Mar. 26-29, 2023.

4. Won Joon Yun, Byungju Lim, Soyi Jung, Young-Chai Ko, Jihong Park, Joongheon Kim, and Mehdi Bennis, “Attention-based Reinforcement Learning for Real-Time UAV Semantic Communication,” in Proc. International Symposium on Wireless Communication Systems (ISWCS), Berlin, Germany, Sep. 6-9, 2021.

5. Byungju Lim, Sung Sik Nam, Mohamed-Slim Alouini, and Young-Chai Ko, "The Performance of A CDF-Based Multiuser Scheduling Scheme for Non-Orthogonal Multiple Access (NOMA)," in Proc. IEEE International Conference on Communications (ICC), Shanghai, China, May. 20-24, 2019.

6. Byungju Lim and Young-Chai Ko, “Optimal Receiver Filter for GFDM with Timing and Frequency Offsets in Uplink Multiuser Systems,” in Proc. IEEE Wireless Communications and Networking Conference (WCNC), Barcelona, Spain, Apr. 2018.

7. Sung Sik Nam, Byungju Lim, Mohamed-Slim Alouini, and Young-Chai Ko, “Symbol Error Rate Analysis of Adaptive Threshold Based Relay Selection with 2-Bits Feedback for Type-2 Relays,” in Proc. The Eleventh International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies (UBICOMM), Barcelona, Spain, Nov. 2017. 

8. Byung-Ju Lim and Young-Chai Ko, "Performance Comparisons between OFDM and GFDM with Timing Synchronization Errors," in Proc. International Conference on Electronics, Information and Communication (ICEIC), Danang, Vietnam, Jan. 27-30, 2016.

9. Jae-Hyung Choi, Byung-Ju Lim, Young Jun Kim and Young-Chai Ko, "Effect of Timing and Frequency Synchronization Errors on GFDM Systems," in Proc. International Conference on ICT Convergence (ICTC), Jeju Island, South Korea, Oct. 28-30, 2015.