Olarn Wongwirat received a B.B.A. degree in General Management in 1989 from Ramkhamhaeng University, Thailand, a B.Eng. degree in Electronics in 1990 from South-East Asia University, Thailand, an M.S. degree in Electrical Engineering in 1995 from New Mexico State University, USA, and a D.Eng. degree in Electronics in 2007 from Tokai University, Japan, respectively. He also has two years’ experience as an engineer in electronic industry. Currently, he is an Assistant Professor and join research in Intelligent Embedded Systems Innovation (IESI) laboratory at the School of Information Technology, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Thailand. His interesting subjects and research areas include embedded systems, communication networks, and mobile and wireless networks.