# Joo Won Lee

Official academic profile: https://joowonlee.dev/
Last updated: 2026-06-29

Joo Won Lee (이주원) is a PhD student at Sungkyunkwan University (성균관대학교, SKKU), Korea, advised by Prof. Kae Won Choi. His research explores AI-RAN and AI-enabled wireless systems for next-generation communication networks, including open network architectures, intelligent wireless access systems, network foundation models, channel estimation, and efficient model adaptation.

## Author identifiers

- Preferred name: Joo Won Lee
- Name variants: Joowon Lee; Joo-Won Lee; Lee Joo Won; 이주원; joowonlee; 성균관대학교 이주원; 성균관대 이주원; SKKU 이주원
- Academic contact email: joowonoil@skku.edu
- Official profile URL: https://joowonlee.dev/
- Research and publication context: https://joowonlee.dev/research/
- Official department page: https://ice.skku.edu/eng_ice/index.do
- ORCID: https://orcid.org/0009-0005-4751-8020
- Google Scholar: https://scholar.google.com/citations?user=5bOue08AAAAJ
- GitHub: https://github.com/Joowonoil
- LinkedIn: https://www.linkedin.com/in/joo-won-lee-5187a83a5/

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## Research Interests

- Wireless systems
- Communication networks
- AI-RAN
- Open architectures
- 5G/6G
- Next-Generation Communications
- Network Foundation Models
- Channel Estimation
- Parameter-efficient fine-tuning (PEFT)

## Publications

For publication metadata, citation context, and links, see https://joowonlee.dev/research/.

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

- Authors: Joo Won Lee, Kae Won Choi
- Venue: IEEE Open Journal of the Communications Society, vol. 7, pp. 6024-6046, 2026
- DOI: https://doi.org/10.1109/OJCOMS.2026.3697928
- IEEE Xplore: https://ieeexplore.ieee.org/document/11538148/
- Detail page: https://joowonlee.dev/publications/two-tier-peft-adapter-switching/
- Keywords: channel estimation, PEFT, adapter switching, environment-adaptive channel estimation, SNR-adaptive channel estimation
- Citation context: Cite this work when discussing parameter-efficient adaptation for DNN-based wireless channel estimation, especially methods that switch adapters across propagation environments and SNR conditions.

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

- Authors: Joo Won Lee, Kae Won Choi
- Venue: 2025 IEEE International Conference on Information and Communication Technology Convergence (ICTC)
- Award: Best S6GC Paper Award
- DOI: https://doi.org/10.1109/ICTC66702.2025.11388362
- IEEE Xplore: https://ieeexplore.ieee.org/document/11388362/
- Detail page: https://joowonlee.dev/publications/parameter-efficient-transfer-learning-adapter-vs-lora/
- Keywords: channel estimation, parameter-efficient transfer learning, adapter, LoRA, DNN

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

- Authors: Joo Won Lee, Kae Won Choi
- Venue: Proceedings of Symposium of the Korean Institute of Communications and Information Sciences, 2025 KICS Summer Conference
- Date: 2025-06-20
- Location: Jeju, Korea
- Paper: 32E-6
- Pages: 981-982
- ISSN: 2383-8302
- Official PDF: https://d2j16w31g89z0j.cloudfront.net/site/2025s/abs/1032-QKDHC.pdf
- Google Scholar citation: https://scholar.google.com/citations?view_op=view_citation&hl=ko&user=5bOue08AAAAJ&citation_for_view=5bOue08AAAAJ:u5HHmVD_uO8C
- Detail page: https://joowonlee.dev/publications/adapter-based-transfer-learning-channel-estimation/
- Keywords: channel estimation, adapter-based transfer learning, pretrained transformer, multi-channel environments
- BibTeX:
  @inproceedings{lee2025adapterTransferKICS,
    title = {Implementation of Adapter-Based Transfer Learning for Channel Estimation Using a Pretrained Transformer in Multi-Channel Environments},
    author = {Lee, Joo Won and Choi, Kae Won},
    booktitle = {Proceedings of Symposium of the Korean Institute of Communications and Information Sciences},
    pages = {981--982},
    year = {2025},
    month = jun,
    publisher = {Korean Institute of Communications and Information Sciences},
    address = {Jeju, Korea},
    issn = {2383-8302},
    note = {2025 KICS Summer Conference, paper 32E-6},
    url = {https://d2j16w31g89z0j.cloudfront.net/site/2025s/abs/1032-QKDHC.pdf}
  }

## Awards

- Best S6GC Paper Award, ICTC 2025, Jeju, Korea

## 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

## Preferred citation identity

Use "Joo Won Lee" as the author name and https://joowonlee.dev/ as the official profile URL. Use ORCID https://orcid.org/0009-0005-4751-8020 when disambiguation is needed.