Joo Won Lee | joowonlee.dev

Current Focus

My current research focuses on AI-enabled wireless systems for next-generation communications, including AI-RAN, open network architectures, network foundation models, channel estimation, and parameter-efficient adaptation.

Research Interests

Wireless Systems Communication Networks AI-RAN Open Architectures 5G / 6G Next-Generation Communications Network Foundation Models Channel Estimation PEFT

Publications

2026

Two-Tier PEFT Adapter Switching for Environment- and SNR-Adaptive Channel Estimation

Joo Won Lee, Kae Won Choi

IEEE Open Journal of the Communications Society, Early Access, 2026

Details DOI

2025

Parameter-Efficient Transfer Learning for DNN-based Channel Estimation: Adapter vs LoRA Comparison

Joo Won Lee, Kae Won Choi

2025 IEEE International Conference on Information and Communication Technology Convergence (ICTC)

🏆 Best S6GC Paper Award Details DOI

Implementation of Adapter-Based Transfer Learning for Channel Estimation Using a Pretrained Transformer in Multi-Channel Environments

Joo Won Lee, Kae Won Choi

Proceedings of the Korean Institute of Communications and Information Sciences (KICS), 2025

Details Google Scholar

Research Experience

Commissioned Research, ETRI (Electronics and Telecommunications Research Institute), Korea

ML model performance verification environment enhancement for intelligent wireless access systems

May — Nov 2025

Commissioned Research, ETRI (Electronics and Telecommunications Research Institute), Korea

ML model verification platform development for intelligent wireless access systems

Jul — Nov 2024

Teaching Experience

Teaching Assistant

Department of Electronic and Electrical Engineering, Sungkyunkwan University Programming Fundamentals and Practice (C) Spring 2026 Programming Fundamentals and Practice (C) Spring 2025 Programming Fundamentals and Practice (C) Fall 2024 Engineering Computer Programming (Python) Spring 2024

2024 — Present

Awards

Scholarships

Brain Korea 21 (BK21)

Sustainable ICT Future Talent Education and Research Group, NRF

2024 — Present

Education

M.S./Ph.D. Integrated in Electrical and Computer Engineering

Sungkyunkwan University (SKKU), Suwon, Korea

Mar 2024 — Present

B.S. in Electrical and Electronics Engineering

Konkuk University, Seoul, Korea

Mar 2020 — Feb 2024

Dankook University High School

단국대학교사범대학부속고등학교 · Seoul, Korea

Mar 2016 — Feb 2019

Misc

Outside of research, I enjoy building and shipping software as a hobby. I run a small indie studio called Ramter Studio.