1. Department of Electrical, Electronics and Communications Engineering; American University of Ras Al Khaimah; Ras al-Khaimah UAE
2. Departamento de Ingeniería de Sistemas y Automática, Escuela Universitaria de Ingeniería de Vitoria-Gasteiz; Universidad del País Vasco; Vitoria-Gasteiz Spain
3. Department of Electrical and Automation Engineering, National Engineering School of Gabes; University of Gabes; Gabes Tunisia