Dr. Pec Rothnareceived his engineering diploma in electrical and energy engineering (option: electronics, automation, and telecommunication) from Institute of Technology of Cambodia, Phnom Penh, Cambodia, the M.S. degree, and the Ph.D. degree in electrical and electronics engineering (major: communication and signal processing) from Chung-Ang University, Seoul, Republic of Korea, in 2011, 2013, and 2017, respectively.