Internet of Things, edge computing, autonomous vehicle communication, intelligent IoT service, distributed networking system, 6G wireless communication

2012 - Present: Professor at Yonsei University, Department of Computer Science and Engineering
2011 - 2012: Researcher at NIST, Advanced Networking Technologies Division, Emerging & Mobile Network Technologies Group
2004 - 2009: Researcher at NIST, Advanced Networking Technologies Division, Emerging & Mobile Network Technologies Group
2003 - 2005: Assistant professor at Sejong University, Graduate School of Information & Communications, Sep 2003 – Aug 2005
2000 - 2003: Researcher at NIST, Advanced Networking Technologies Division, High Speed Network Group
1997 - 2001: Research Associate at Industrial Technology Researcher Center in Yonsei University
1995 - 1996: Researcher at Korea Telecommunication R&D Center

Editorial Board Member, Journal of Communications and Networks

Publication Editor, Journal of Communications and Networks

Technical Editor, IEEE Wireless Communications Magazine

TPC Member, International Confrence on Information Networking 2021

TPC Member, International Conference on Wireless and Mobile Communications 2021

TPC Member, International Conference on Artificial Intelligence in Information and Communication

Reviewer, IEEE Transactions on Vehicular Technology, IEEE Internet of Things Journal