1. School of Telecommunication Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand
2. Department of Telecommunication Engineering, Faculty of Engineering and Technology, Rajamangala University of Technology Isan (RMUTI), Nakhon Ratchasima, Thailand
3. Graduate Faculty of Interdisciplinary Research, University of Yamanashi, Kofu, Japan
4. Navaminda Kasatriyadhiraj Royal Air Force Academy, Bangkok, Thailand