Young-Chai Ko

ORCID

Publication Activity (10 Years)

Years Active: 2000-2024
Publications (10 Years): 98

Top Venues

ICTC

IEEE Access

IEEE Trans. Veh. Technol.

CoRR

Publications

Seok-Hyun Yoon, Byungju Lim, Mai Vu, Young-Chai Ko
Joint User Selection and Beamforming Design for Multi-IRS Aided Internet-of-Things Networks. IEEE Trans. Veh. Technol. 73 (2) (2024)
Dong-Hyoun Na, Ki-Hong Park, Young-Chai Ko, Mohamed-Slim Alouini
Multigateway precoded NOMA in multibeam satellite multicast systems. J. Commun. Networks 25 (2) (2023)
Ju-Hyung Lee, Jihong Park, Mehdi Bennis, Young-Chai Ko
Integrating LEO Satellites and Multi-UAV Reinforcement Learning for Hybrid FSO/RF Non-Terrestrial Networks. IEEE Trans. Veh. Technol. 72 (3) (2023)
Tae-In Oh, Jong-Min Kim, Min-Ji Lee, Young-Chai Ko
Experimental Analysis of a Time-Dependent FSO System under Summer Conditions in South Korea. ICTC (2023)
Byungju Lim, Ju-Hyung Lee, Jae-Hong Kwon, Ki-Hun Kim, Jong-Man Lee, Hyun Park, Young-Seok Ha, Young-Jin Han, Young-Chai Ko
Joint association and resource allocation for multi-hop integrated access and backhaul (IAB) network. J. Commun. Networks 25 (4) (2023)
Dohyun Jang, Ha-Lim Song, Young-Chai Ko, H. Jin Kim
Distributed Beam Tracking for Vehicular Communications via UAV-Assisted Cellular Network. IEEE Trans. Veh. Technol. 72 (1) (2023)
Ju-Hyung Lee, Hyowoon Seo, Jihong Park, Mehdi Bennis, Young-Chai Ko
Learning Emergent Random Access Protocol for LEO Satellite Networks. IEEE Trans. Wirel. Commun. 22 (1) (2023)
Jong-Min Kim, Ju-Hyung Lee, Yeongrok Lee, Young-Chai Ko
WDM-RoFSO transmission: Demonstration based on IEEE 802.11 WLAN standard. ICT Express 9 (6) (2023)
Dong-Hwee Kim, Byungju Lim, Young-Chai Ko
Beam Tracking Using Monopulse Signal for UAV Communications With Doppler Shift. ICTC (2023)
Byeongheon Lee, Ju-Hyung Lee, Young-Chai Ko
Fairness-Aware Scheduling Optimization for NB-IoT in LEO Satellite Networks Using a 3D Spherical Coordinate System. MILCOM (2023)
Dong-Hyoun Na, Ki-Hong Park, Young-Chai Ko, Mohamed-Slim Alouini
Beamforming and Band Allocation for Satellite and High-Altitude Platforms Cognitive Systems. IEEE Wirel. Commun. Lett. 11 (11) (2022)
Jong-Min Kim, Ju-Hyung Lee, Yeongrok Lee, Hong-Seol Cha, Hyunsu Park, Jincheol Sim, Chulwoo Kim, Young-Chai Ko
Experimental Demonstration of RoFSO Transmission Combining WLAN Standard and WDM-FSO over 100m Distance. INFOCOM Workshops (2022)
Kug-Jin Jung, Sung Sik Nam, Mohamed-Slim Alouini, Young-Chai Ko
Ergodic Capacity Analysis of UAV-Based FSO Links Over Foggy Channels. IEEE Wirel. Commun. Lett. 11 (7) (2022)
Yeongrok Lee, Ju-Hyung Lee, Young-Chai Ko
Beamforming Optimization for IRS-Assisted mmWave V2I Communication Systems via Reinforcement Learning. IEEE Access 10 (2022)
Julius Ssimbwa, Byungju Lim, Young-Chai Ko
GFDM frame design for low-latency industrial networks. J. Commun. Networks 24 (3) (2022)
Ju-Hyung Lee, Ki-Hong Park, Young-Chai Ko, Mohamed-Slim Alouini
Spectral-Efficient Network Design for High-Altitude Platform Station Networks With Mixed RF/FSO System. IEEE Trans. Wirel. Commun. 21 (9) (2022)
Dong-Hyoun Na, Ki-Hong Park, Young-Chai Ko, Mohamed-Slim Alouini
Performance Analysis of Satellite Communication Systems With Randomly Located Ground Users. IEEE Trans. Wirel. Commun. 21 (1) (2022)
Jae-Hong Kwon, Byungju Lim, Young-Chai Ko
Resource Allocation and System Design of Out-Band Based Integrated Access and Backhaul Network at mmWave Band. IEEE Trans. Veh. Technol. 71 (6) (2022)
Ju-Hyung Lee, Hyowoon Seo, Jihong Park, Mehdi Bennis, Young-Chai Ko, Joongheon Kim
Random Access Protocol Learning in LEO Satellite Networks via Reinforcement Learning. VTC Spring (2022)
Byungju Lim, Won Joon Yun, Joongheon Kim, Young-Chai Ko
Joint Pilot Design and Channel Estimation Using Deep Residual Learning for Multi-Cell Massive MIMO Under Hardware Impairments. IEEE Trans. Veh. Technol. 71 (7) (2022)
Een-Kee Hong, Inkyu Lee, Byonghyo Shim, Young-Chai Ko, Sang-Hyo Kim, Sangheon Pack, Kyunghan Lee, Sunwoo Kim, Jae-Hyun Kim, Yoan Shin, Younghan Kim, Haejoon Jung
6G R&D vision: Requirements and candidate technologies. J. Commun. Networks 24 (2) (2022)
Ha-Lim Song, Young-Chai Ko
Adaptive Beamforming Design for Angular Dynamics in High-Speed Mobility. ICTC (2021)
Ha-Lim Song, Young-Chai Ko
Beam Alignment for High-Speed UAV via Angle Prediction and Adaptive Beam Coverage. IEEE Trans. Veh. Technol. 70 (10) (2021)
Ha-Lim Song, Young-Chai Ko
Integrating GPS Sensor and Beamforming for UAV Tracking Algorithm. ICEIC (2021)
Byungju Lim, Ju-Hyung Lee, Jae-Hong Kwon, Young-Chai Ko
Joint Association and Resource Allocation for Multi-Hop Integrated Access and Backhaul (IAB) Network. CoRR (2021)
Ju-Hyung Lee, Hyowoon Seo, Jihong Park, Mehdi Bennis, Young-Chai Ko
Learning Emergent Random Access Protocol for LEO Satellite Networks. CoRR (2021)
Ha-Lim Song, Sung Sik Nam, Young-Chai Ko
Angle-of-Arrival Estimation Technique for Fast Beamforming Using Monopulse Signal in the Antenna Array Systems. IEEE Access 9 (2021)
Ha-Lim Song, Young-Chai Ko
Robust and Low Complexity Beam Tracking With Monopulse Signal for UAV Communications. IEEE Trans. Veh. Technol. 70 (4) (2021)
Ju-Hyung Lee, Young-Chai Ko
Optimization for LEO Satellite-Ground Integrated Networks via Deep Reinforcement Learning. ICTC (2021)
Jae-Won Kim, Byungju Lim, Young-Chai Ko
A Rapid Serial Timing Acquisition Algorithm for Hybrid DS/FFH Packet Radio Communication. IEEE Trans. Aerosp. Electron. Syst. 57 (2) (2021)
Jong-Min Kim, Ju-Hyung Lee, Young-Chai Ko
Position-Error Compensation Method for FSO using Two-Step Search. ICTC (2021)
Jong-Min Kim, Ju-Hyung Lee, Young-Chai Ko
Demo Abstract: WLAN Standard-based Non-Coherent FSO Transmission over 100m Indoor and Outdoor Environments. INFOCOM Workshops (2021)
Ju-Hyung Lee, Ki-Hong Park, Young-Chai Ko, Mohamed-Slim Alouini
Throughput Maximization of Mixed FSO/RF UAV-Aided Mobile Relaying With a Buffer. IEEE Trans. Wirel. Commun. 20 (1) (2021)
Changhwan Yi, Dongkyo Kim, Sourabh Solanki, Jae-Hong Kwon, Moonil Kim, Sanggeun Jeon, Young-Chai Ko, Inkyu Lee
Design and Performance Analysis of THz Wireless Communication Systems for Chip-to-Chip and Personal Area Networks Applications. IEEE J. Sel. Areas Commun. 39 (6) (2021)
Won Joon Yun, Byungju Lim, Soyi Jung, Young-Chai Ko, Jihong Park, Joongheon Kim, Mehdi Bennis
Attention-based Reinforcement Learning for Real-Time UAV Semantic Communication. CoRR (2021)
Won Joon Yun, Byungju Lim, Soyi Jung, Young-Chai Ko, Jihong Park, Joongheon Kim, Mehdi Bennis
Attention-based Reinforcement Learning for Real-Time UAV Semantic Communication. ISWCS (2021)
Byungju Lim, Young-Chai Ko
Link Association for Small Cell Networks with Wireless Backhaul. ICTC (2021)
Hyunho Lee, Young-Chai Ko
Physical Layer Enhancements for Ultra-Reliable Low-Latency Communications in 5G New Radio Systems. IEEE Commun. Stand. Mag. 5 (4) (2021)
Ju-Hyung Lee, Ki-Hong Park, Young-Chai Ko, Mohamed-Slim Alouini
Throughput Maximization of Mixed FSO/RF UAV-aided Mobile Relaying with a Buffer. CoRR (2020)
Ju-Hyung Lee, Ki-Hong Park, Young-Chai Ko, Mohamed-Slim Alouini
A UAV-Mounted Free Space Optical Communication: Trajectory Optimization for Flight Time. IEEE Trans. Wirel. Commun. 19 (3) (2020)
Byungju Lim, Sung Sik Nam, Young-Chai Ko, Mohamed-Slim Alouini
Outage Analysis for Downlink Non-Orthogonal Multiple Access (NOMA) With CDF-Based Scheduling. IEEE Wirel. Commun. Lett. 9 (6) (2020)
Ju-Hyung Lee, Jihong Park, Mehdi Bennis, Young-Chai Ko
Integrating LEO Satellites and Multi-UAV Reinforcement Learning for Hybrid FSO/RF Non-Terrestrial Networks. CoRR (2020)
Jae-Hong Kwon, Jungil Cho, Byunggil Yu, Seongju Lee, Inha Jung, Chanho Hwang, Young-Chai Ko
Spectral and energy efficient power allocation for MIMO broadcast channels with individual delay and QoS constraints. J. Commun. Networks 22 (5) (2020)
Ha-Lim Song, Young-Chai Ko, Jungil Cho, Chanho Hwang
Beam Tracking Algorithm for UAV Communications Using Kalman Filter. ICTC (2020)
Byungju Lim, Sung Sik Nam, Young-Chai Ko, Mohamed-Slim Alouini
CDF-Based Multiuser Scheduling for Downlink Non-Orthogonal Multiple Access (NOMA). IEEE Access 8 (2020)
Ju-Hyung Lee, Jihong Park, Mehdi Bennis, Young-Chai Ko
Integrating LEO Satellite and UAV Relaying via Reinforcement Learning for Non-Terrestrial Networks. GLOBECOM (2020)
Kug-Jin Jung, Sung Sik Nam, Mohamed-Slim Alouini, Young-Chai Ko
Unified Finite Series Approximation of FSO Performance Over Strong Turbulence Combined With Various Pointing Error Conditions. IEEE Trans. Commun. 68 (10) (2020)
Kug-Jin Jung, Sung Sik Nam, Jinwoo Shin, Young-Chai Ko
Unified statistical performance of FSO link due to the combined effect of weak turbulence and generalized pointing error with HD and IM/DD. J. Commun. Networks 22 (6) (2020)
Changhwan Yi, Dongkyo Kim, Sourabh Solanki, Jae-Hong Kwon, Moonil Kim, Sanggeun Jeon, Young-Chai Ko, Inkyu Lee
THz Wireless Systems Design for Personal Area Networks Applications. ICTC (2020)
Ji-Ho Lee, Sung Sik Nam, Young-Chai Ko
Outage Performance Analysis of Two-Way Full-Duplex DF Relaying Networks With Beamforming. IEEE Trans. Veh. Technol. 69 (8) (2020)
Kug-Jin Jung, Jong Min Kim, Young-Chai Ko
Investigation of Boresight and Jitter in Free Space Optical Communications with pointing error and Weak Turbulence. ICTC (2020)
Ji-Ho Lee, Young-Chai Ko
Beamformmg Design for Full-Duplex DF Relaying Networks. ICTC (2020)
Ju-Hyung Lee, Ki-Hong Park, Mohamed-Slim Alouini, Young-Chai Ko
Optimal Resource Allocation and Placement for Terrestrial and Aerial Base Stations in Mixed RF/FSO Backhaul Networks. VTC Spring (2020)
Ju-Hyung Lee, Young-Chai Ko
Cells on Network Flying Platforms: Optimal Resource Allocation and Deployment for Sensor Network. ICTC (2020)
Ju-Hyung Lee, Jihong Park, Mehdi Bennis, Young-Chai Ko
Integrating LEO Satellite and UAV Relaying via Reinforcement Learning for Non-Terrestrial Networks. CoRR (2020)
Ju-Hyung Lee, Ki-Hong Park, Mohamed-Slim Alouini, Young-Chai Ko
Free Space Optical Communication on UAV-Assisted Backhaul Networks: Optimization for Service Time. GLOBECOM Workshops (2019)
Kug-Jin Jung, Sung Sik Nam, Mohamed-Slim Alouini, Young-Chai Ko
Unified Statistical Channel Model of Ship (or Shore)-to-Ship FSO Communications with Pointing Errors. CSCN (2019)
Sung Sik Nam, Young-Chai Ko, Duckdong Hwang, Mohamed-Slim Alouini
Systematic and Unified Stochastic Tool to Determine the Multidimensional Joint Statistics of Arbitrary Partial Products of Ordered Random Variables. IEEE Access 7 (2019)
Ju-Hyung Lee, Ki-Hong Park, Young-Chai Ko, Mohamed-Slim Alouini
A UAV-Mounted Free Space Optical Communication: Trajectory Optimization for Flight Time. CoRR (2019)
Ju-Hyung Lee, Ki-Hong Park, Mohamed-Slim Alouini, Young-Chai Ko
On the Throughput of Mixed FSO/RF UAV-Enabled Mobile Relaying Systems with a Buffer Constraint. ICC (2019)
Byungju Lim, Young-Chai Ko
Multiuser Interference Cancellation for GFDM With Timing and Frequency Offsets. IEEE Trans. Commun. 67 (6) (2019)
Sung Sik Nam, Seyeong Choi, Duckdong Hwang, Young-Chai Ko
SER Analysis of Adaptive Threshold-Based Relay Selection With Limited Feedback for Type II Relay. IEEE Access 7 (2019)
Byungju Lim, Sung Sik Nam, Mohamed-Slim Alouini, Young-Chai Ko
The Performance of a CDF-Based Multiuser Scheduling Scheme for Non-Orthogonal Multiple Access (NOMA). ICC (2019)
Jae-Hong Kwon, Young-Chai Ko, Jinwoo Shin
Energy Efficient Power Allocation for Multi-User MIMO Downlink Systems with Statistical Delay Constraints. CSCN (2019)
Yeongrok Lee, Sung Sik Nam, Young-Chai Ko
Implementation of Multiple Signal Classification and Triangulation for Localization of Signal Using Universal Software Radio Peripheral. ICCCS (2019)
Kwang Soon Kim, Dong Ku Kim, Chan-Byoung Chae, Sunghyun Choi, Young-Chai Ko, Jonghyun Kim, Yeon-Geun Lim, Minho Yang, Sundo Kim, Byungju Lim, Kwanghoon Lee, Kyung Lin Ryu
Ultrareliable and Low-Latency Communication Techniques for Tactile Internet Services. CoRR (2019)
Ha-Lim Song, Sung Sik Nam, Young-Chai Ko
Angle-of-Arrival Estimation in Antenna Arrays based on Monopulse Signal. ICUFN (2019)
Kwang Soon Kim, Dong Ku Kim, Chan-Byoung Chae, Sunghyun Choi, Young-Chai Ko, Jonghyun Kim, Yeon-Geun Lim, Minho Yang, Sundo Kim, Byungju Lim, Kwanghoon Lee, Kyung Lin Ryu
Ultrareliable and Low-Latency Communication Techniques for Tactile Internet Services. Proc. IEEE 107 (2) (2019)
Ju-Hyung Lee, Ki-Hong Park, Mohamed-Slim Alouini, Young-Chai Ko
Trajectory Optimization of Energy Efficient FSOC-UAV with Atmospheric and Geometric Loss. ICUFN (2018)
Byung-Ju Lim, Young-Chai Ko
Optimal receiver filter for GFDM with timing and frequency offsets in uplink multiuser systems. WCNC (2018)
Kug-Jin Jung, Sung Sik Nam, Young-Chai Ko
Impact of Both Nonzero Boresight and Jitter Pointing Error on Outage Capacity of FSO Communication Systems Over Strong Turbulence. ICUFN (2018)
Sung-Wook Eo, Joon Goo Lee, Min-Seok Kim, Young-Chai Ko
ASIC Design for Real-Time One-Shot Correction of Optical Aberrations and Perspective Distortion in Microdisplay Systems. IEEE Access 6 (2018)
Kug-Jin Jung, Sung Sik Nam, Young-Chai Ko, Mohamed-Slim Alouini
BER Performance of FSO Links over Unified Channel Model for Pointing Error Models. ICC Workshops (2018)
Sung Sik Nam, Ju-Hyung Lee, Changseok Yoon, Young-Chai Ko
BER Analysis of Wavelength Division Multiplexing-Based Multiple Beam Scheduling Scheme Based on Gamma Approximation Channel. ICUFN (2018)
Sung Sik Nam, Mohamed-Slim Alouini, Young-Chai Ko
Performance Analysis of FD MIMO DF Cooperative Relaying Networks Using ZFBF. IEEE Access 6 (2018)
Sung Sik Nam, Mohamed-Slim Alouini, Young-Chai Ko
Performance Analysis of a Threshold-Based Parallel Multiple Beam Selection Scheme for WDM FSO Systems. IEEE Access 6 (2018)
Tae-Jun Lee, Young-Chai Ko
Channel Estimation and Data Detection in the Presence of Phase Noise in MIMO-OFDM Systems With Independent Oscillators. IEEE Access 5 (2017)
Sung Sik Nam, Young-Chai Ko, Mohamed-Slim Alouini
Mellin-transform-based new results of the joint statistics of partial products of ordered random variables. ISIT (2017)
Byung-Ju Lim, Young-Chai Ko
SIR Analysis of OFDM and GFDM Waveforms With Timing Offset, CFO, and Phase Noise. IEEE Trans. Wirel. Commun. 16 (10) (2017)
Sung-Wook Eo, Joon Goo Lee, Min-Seok Kim, Young-Chai Ko
High performance and low power timing controller design for LCoS microdisplay system. ISOCC (2017)
Sung Sik Nam, Young-Chai Ko, Mohamed-Slim Alouini
New Closed-Form Results on Ordered Statistics of Partial Sums of Gamma Random Variables and Its Application to Performance Evaluation in the Presence of Nakagami Fading. IEEE Access 5 (2017)
Byung-Ju Lim, Young-Chai Ko
Analysis of Timing and Frequency Offsets on OFDM Systems for Fractional Sampling Rate. IEICE Trans. Commun. (10) (2017)
Sung Sik Nam, Mohamed-Slim Alouini, Lin Zhang, Young-Chai Ko
Threshold-Based Multiple Optical Signal Selection Scheme for Free-Space Optical Wavelength Division Multiplexing Systems. JOCN 9 (12) (2017)
Jae-Hong Kwon, Young-Chai Ko, Sung Sik Nam
Optimal Design of Random Unitary Beamforming for Energy Efficiency in MIMO Broadcast Channels. IEEE Access 5 (2017)
Sung Sik Nam, Mohamed-Slim Alouini, Young-Chai Ko, Sung Ho Cho
A threshold-based multiple optical signal selection scheme for WDM FSO systems. IWCMC (2017)
Youngjun Kim, Young-Chai Ko
Cramer-Rao lower bound of channel estimator in continuous variable quantum key distribution. ICTC (2016)
Jaehyung Choi, Jae-Hong Kwon, Young-Chai Ko
CFO and channel estimation schemes for multi-user massive MIMO systems in high mobility environment. CSCN (2016)
Min-Hwa Jeong, Tae-Jun Lee, Young-Chai Ko
Effects of phase noise on the performance of multi-user downlink MIMO-OFDM AF relay systems. ICTC (2016)
Tae-Jun Lee, Min-Hwa Jeong, Young-Chai Ko
Phase noise mitigation in MIMO-OFDM systems with independent oscillators. CSCN (2016)
Young-Chai Ko, Myeong-Jin Kim
Channel estimation and analog beam selection for uplink multiuser hybrid beamforming system. EURASIP J. Wirel. Commun. Netw. 2016 (2016)
Youngjun Kim, Young-Chai Ko
Simultaneous classical communication and quantum key distribution based on Gaussian modulated coherent states. IEICE Electron. Express 13 (16) (2016)
Kyung-Tae Jo, Young-Chai Ko, Seyeong Choi
Channel Estimation and Performance Evaluation over Ricean Fading for Multiple-Antenna RF Beamforming. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2016)
Jae-Hong Kwon, Young-Chai Ko, Hong-Chuan Yang
Optimizing Random Unitary Beamforming for Energy Efficiency in MIMO Broadcast Channels. VTC Fall (2016)
Myeong-Jin Kim, Hyun-Ho Lee, Young-Chai Ko
Interference Alignment Scheme Based on Limited Feedback for Two-Cell Interfering MIMO-MAC. VTC Spring (2015)
Myeong-Jin Kim, Young-Chai Ko
Low Complexity Analog Beam Selection for Uplink Multiuser Hybrid Beamforming System. GLOBECOM Workshops (2015)
Min-Hwa Jeong, Tae-Jun Lee, Myung-Jin Kim, Young-Chai Ko
Effect of phase noise in IEEE 802.11ad MIMO-OFDM systems with common/independent local oscillators. ICTC (2015)
Jaehyung Choi, Byung-Ju Lim, Youngjun Kim, Young-Chai Ko
Effect of timing and frequency synchronization errors on GFDM systems. ICTC (2015)
Myeong-Jin Kim, Hyun-Ho Lee, Young-Chai Ko
Limited Feedback Design for Interference Alignment on Two-Cell Interfering MIMO-MAC. IEEE Trans. Veh. Technol. 64 (9) (2015)
Hyun-Ho Lee, Myeong-Jin Kim, Young-Chai Ko
Transceiver Design Based on Interference Alignment in MIMO Interfering Broadcast Channels. IEEE Trans. Wirel. Commun. 13 (11) (2014)
Myeong-Jin Kim, Young-Chai Ko
Sequential transceiver design based on block diagonalization and interference alignment for full duplex multiuser MIMO system. ICTC (2014)

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Publication Activity (10 Years)

Top Topics

Top Venues

Young-Chai Ko