1. Space Science Center, Institute of Climate Change, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Malaysia
2. Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Malaysia
3. Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Malaysia
4. Hayakawa Institute of Seismo Electromagnetics Co., Ltd. (Hi-SEM), UEC Alliance Center, 1-1-1 Kojimacho, Chofu 182-0026, Japan
5. Advanced & Wireless Communications Research Center (AWCC), The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu 182-8585, Japan