1. Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon-si, South Korea
2. School of Electrical and Electronic Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
3. College of Computing and Informatics, Sungkyunkwan University, Suwon-si, South Korea
4. Department of IT Convergence Software, Seoul Theological University, Bucheon-si, South Korea