1. Department of Information and Communication Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
2. Higher Institute of Computer Science of Mahdia, University of Monastir, Mahdia 5000, Tunisia
3. Faculty of Engineering, Université de Moncton, Moncton, NB E1A 3E9, Canada
4. International Institute of Technology and Management, Avenue des Grandes Ecoles, Libreville P.O. Box 1989, Gabon
5. School of Electrical Engineering, Department of Electrical and Electronic Engineering Science, University of Johannesburg, Johannesburg 2006, South Africa
6. Spectrum of Knowledge Production & Skills Development, Sfax 3027, Tunisia