1. Universiti Malaysia Perlis,Faculty of Electronic Engineering & Technology,Arau, Perlis,Malaysia,02600
2. Centre of Excellence Universiti Malaysia Perlis,Advanced Communication Engineering,Kangar, Perlis,Malaysia,01000
3. University of Wollongong in Dubai,Faculty of Engineering and Information Sciences,Dubai,United Arab Emirates,20183
4. Institute of Climate Change Universiti Kebangsaan Malaysia,Space Science Centre,Bangi,Malaysia,43600