1. Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, UTHM, Batu Pahat, Johor, Malaysia
2. College of Engineering, School of Electrical Engineering, Universiti Teknologi MARA (UITM), Shah Alam, Selangor, Malaysia
3. Center for Telecommunication Research & Innovation (CeTRI), Fakulti Teknologi dan Kejuruteraan Elektronik dan Komputer (FTKEK), Universiti Teknikal Malaysia Melaka (UTeM), Jalan Hang Tuah Jaya, Durian Tunggal, Melaka, Malaysia