1. a Faculty of Engineering, Multimedia University, Persiaran Multimedia, Cyberjaya, Selangor 63100, Malaysia; Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor 43600, Malaysia
2. b Institute of Space Science (ANGKASA), Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor 43600, Malaysia
3. c Institute of Space Science (ANGKASA), Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor 43600, Malaysia; Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor 43600, Malaysia
4. d Institute of Space Science (ANGKASA), Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor 43600, Malaysia; Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor 43600, Malaysia