1. Wireless Communication Centre, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
2. Department of Communication Engineering, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
3. Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
4. Faculty of Engineering, Multimedia University, Persiaran Multimedia, Cyberjaya, Selangor, Malaysia
5. Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Birmingham, U.K.
6. Faculty of Applied Science, School of Engineering, The University of British Columbia, Kelowna, Canada