Jun. 2025 - Present, San Diego, CA, USA
Sr. Wireless Systems Engineer @ Qualcomm
Contributing to 6G Phy research.
May 2024 - Aug. 2024, San Diego, CA, USA
Wireless R&D Intern @ Qualcomm
Developed indoor positioning algorithms based on WiFi and IMU measurements for enhancing extended reality (XR) perception
Aug. 2021 - May. 2025, West Lafayatte, IN, USA
Research Assistant @ Purdue University, West Lafayette
Channel-Sensor Fusion for Channel Estimation in Air-to-Ground Massive MIMO
Integrated channel and sensor (GPS/IMU) measurements using Kalman filtering to track and predict UAV's motion and channel for accurate and robust beam tracking.
Advanced Signaling for Integrated Sensing and Communications (ISAC)
Developed beamforming design algorithms for ISAC systems. Addressed important aspects (PAPR, sidelobes, complexity) in practical MIMO communication/radar systems.
Investigated joint polarimetric radar sensing and communications in MIMO systems with polarization-reconfigurable antennas.
Machine Learning for Wireless Propagation Modeling
Developed simulation-enhanced data augmentation for cellular coverage prediction, which involved extracting channel geometry features from geographic LiDAR datasets.
Mar. 2019 - Jun. 2021 Seoul, South Korea
Research Engineer @ 6G Research Team, Samsung Research, Samsung Electronics
Advanced Mobility Management for 6G Communication Systems
Developed ML-based mobility management algorithms for 5G mmWave networks
Developed a system-level simulator complying with the 5G mobility management procedures
Mar. 2017 - Feb. 2019 Seoul, South Korea
Research Assistant @ Yonsei University
Advanced Initial Access Protocols for 5G Systems
Designed a novel 5G random access procedure to support massive IoT communications
Evaluated the proposed random access method through stochastic analysis and system-level simulations with NS-3 (C++)
Fall 2017, Spring 2018
Seoul, South Korea
Teaching Assistant @ Yonsei University
Mathematics for Electrical Engineers (Fall 2017)
Wireless and Mobile Network (Spring 2018)
Reviewer of
IEEE Journal on Selected Areas in Communications
IEEE Journal of Selected Topics in Signal Processing
IEEE Transactions on Communications
IEEE Transactions on Wireless Communications
IEEE Transactions on Vehicular Technology
IEEE Wireless Communications Letters
IEEE MILCOM