He received his B.S. degree in computer science from Chosun University, Gwangju, Republic of Korea, in 2005, an M.S. degree in information and communication from Gwangju Institute of Science and Technology (GIST), Gwangju, Republic of Korea, in 2007, and a Ph.D. degree in computer science at University of California, Los Angeles (UCLA), Los Angeles, CA, USA, in 2012. Before joining Inha University, he was a Staff Member at Cisco Systems until 2014. His research areas include data center networking, wireless networking, future Internet, and mobile/pervasive computing.