Daehee Kim received the B.S. degree in electrical and electronic engineering from Yonsei University, Seoul, South Korea, in 2003, and the M.S. and Ph.D. degrees in electrical and electronic engineering from Korea University, Seoul, in 2006 and 2016, respectively. From 2006 to 2016, he was a Senior Engineer with Samsung Electronics, Suwon, South Korea, where he conducted research on WiMAX and LTE systems. He is currently an Assistant Professor with the Department of the Internet of Things, Soonchunhyang University, Asan, South Korea. His research interest includes the Internet of Things, energy management, blockchain, 5G, and security for wireless networks.