• Associate Professor, 2022.3-Present, in School of Computing, Gachon University

• Visiting Research Collaborator, 2025.2-Present, Princeton University, Hosted by Prof. Vincent Poor (IEEE Life Fellow)

• Visiting Fellow, 2023.2-2025.1, Princeton University, Hosted by Prof. Vincent Poor (IEEE Life Fellow)

• Assistant Professor, 2017.2 - 2022.2, in School of Computing, Gachon University

• Senior Engineer, Samsung Electronics, 2014.03 - 2017.01

  • ​Digital Media & Communications (DMC) R&D Center (2014-2015) : Developing Low-latency transmission technology (performance evaluation by NS-3 simulator, applying to AR/VR streaming)

  • Mobile Business Unit (2015-2016) : Transferring the Low-latency transmission technology into Galaxy series

  • Communications Research Group (2016-2017) : Developing Verizon/KT PyeongChang Pre-5G trial specification, 3GPP SA2 - NextGen standardization

• Visiting Researcher, 2012.6-2013.3, City University of Hong Kong, Advisor : Prof. Moshe Zukerman (IEEE Fellow)

Research Area - 1) Design of Architecture, Protocol, and Algorithm 2) Performance analysis and Optimization for Mobile Networking & Energy System

- Specific current interests are as follows:

• Internet of Things

• Edge computing & cloud computing systems

• Machine Learning & deep learning

• 5G & 6G Networks

• Energy systems

• Membership

  1. IEEE Senior Member (2019-Present; Membership ID : 90582475) :

     1. IEEE Communications Society Membership

     2. IEEE Seoul Section Sensors Council Chapter Vice Chair (2023-Present)

  2. The Korean Institute of Communications and Information Sciences (KICS), Life Member (2017-Present)

• 통신네트워크 소사이어티 이사 (2025-)

• 3. The Korean Institute of Broadcast and Media Engineers (KIBME), Life Member (2019-Present)

  4. ACM Member (2019-Present)

  5. Korean Society for Internet Information 이사 (2022-)

  6. Korean Institute of Information Scientists and Engineers (KIISE), Member (2025-) 

• Editor

  1. Guest editor for Special Issue "Applications of Video Processing and Computer Vision Sensor" in Sensors Journal (2020), link.

  2. Editor, KSII Transactions on Internet and Information Systems (TIIS), indexed in SCIE/JCR (Web of Science) and SCOPUS (2022-2023), link.

• Technical Program Committee

  1. IEEE VTC 2017-Spring (2017)

  2. ICTC 2020 - Organizing Committee -  OC Secretaries (2020)

  3. ICOIN 2020 - Organizing Committee - Poster Co-chairs (2020)

  4. ICTC 2021 - Organizing Committee -  EDAS chair (2021)

  5. ICTC 2022 - TPC Vice Chair for Information Systems (2022)

  6. IEEE CCNC 2023 (2023)

• Reviewer

  1. IEEE Transactions on Industrial Informatics (2017-present)

  2. IEEE Transactions on Industrial Electronics (2017-present)

  3. IEEE Transactions on Vehicular Technology (2012-present)

  4. IEEE Access (2017-present)

  5. IEEE Communications Letters (2012-present)

  6. Elsevier Computer Communications (2012-present)

  7. Elsevier Future Generation Computer Systems (2023-present)

  8. ​IEEE Signal Processing (2016-present)

  9. IEEE IoT Journal (2022-present)

  10. IEEE Transactions on Machine Learning in Communications and Networking (2023-present)

  11. IEEE Transactions on Network Science and Engineering (2023-present)

  12. IEEE INFOCOM (2024)

• International Activities

  1. Greentouch Active Member (GTT) (2011-2014)

  2. Activities as Korean representative, ITU-T SG13 & SG5 (2010-2012) & SG11 (2017-2018)

  3. ​Activities in 3GPP (SA2 - NextGen standardization) (2016-2017)

• Optimization for Machine Learning - graduate course (2020,2021, 2022 Fall, 2024, 2025 Spring)

• Cloud Computing System (distributed systems) (2020, 2021, 2022, 2024, 2025 Spring)

• Software Mathematics (discrete mathematics & linear algebra for machine learning) (2019, 2020, 2021, 2022 Spring)

• Object-Oriented Programming (JAVA Programming) (2018, Summer)

• Mobile Programming (Android Programming) (2017, 2018, 2019 Spring)

• Discrete Mathematics (2017, 2018 Spring)

• Robot Programming (2017 Fall)

• Problem Solving / SW Programming Pattern (intermediate-level C programming)  (2017, 2018, 2019 Fall)

• Computer Networking  (2018, 2019, 2020, 2021, 2022, 2024, 2025 Fall)

• Introduction to Artificial Intelligence (2024, 2025 Fall)