Suwat Sakulchat
Department of Electronics and Telecommunication, Faculty of Engineering, Rajamangala University of Technology Thanyaburi, Pathum Thani
Thailand

Amnoiy Ruengwaree
Department of Electronics and Telecommunication, Faculty of Engineering, Rajamangala University of Technology Thanyaburi, Pathum Thani
Thailand

Watcharaphon Naktong
Department of Telecommunications Engineering, Faculty of Engineering and Technology, Rajamangala University of Technology Isan, Nakhon Ratchasima
Thailand

Voranuch Thongpool
Division of Physics, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani
Thailand