Sang Ik Han received a B.S. degree in electrical and electronics engineering from Chung-Ang University, Seoul, South Korea, in 2006; a M.S. degree in optics from the University of Central Florida, Orlando, FL, USA, in 2009; and a Ph.D. degree in electrical engineering from the University of Texas at Dallas, Richardson, TX, USA, in 2014. He was a Postdoctoral Researcher with the School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea. He was a CEO with Spacesoft Industries Co. Ltd., Daejeon, where the universal platform for unmanned vehicles (e.g., drone or UAV) including hardware and software is being developed for various purposes. He is currently an assistant professor in the School of Smart IT at Semyung University, Jechon-si, Chungcheongbuk-do, South Korea. His research interests include 5G communication systems, UAV networks, vehicular communications, and smart mobility based on artificial intelligence (AI).