I received B.S., M.S. and Ph.D. degrees in computer engineering from the Chungnam National University, Daejeon, Republic of Korea. I worked as a researcher at ETRI, and as an assistant professor at the division of computer, Howon University. I am currently an assistant professor at Daejeon University. My research interests include a reliable communication and information control (data dissemination and collection) in the wireless networks, and fintech.