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. Navaminda Kasatriyadhiraj Royal Air Force Academy, Muak Lek, Saraburi, Thailand