Joohyung Lee received the B.S., M.S., and Ph.D. degrees from the Korea Advanced Institute of Science and Technology, Daejeon, South Korea, in 2008, 2010, and 2014, respectively. He is currently an Associate Professor with the School of Computing, Gachon University, and also a Visiting Fellow with the Department of Electrical and Computer Engineering, Princeton University. From 2012 to 2013, he was a Visiting Researcher with the Information Engineering Group, Department of Electronic Engineering, City University of Hong Kong, Hong Kong. From 2014 to 2017, he worked as a Senior Engineer with Samsung Electronics. He has contributed several articles to the International Telecommunication Union Telecommunication and 3rd Generation Partnership Project. His current research interests include federated learning, 6G networks, cloud/edge computing, and network economics.