1. University of Sousse,National Engineering School of Sousse,Computer Engineering Department,Sousse,Tunisia
2. Université de Sousse,Ecole Nationale d'Ingénieurs de Sousse, LATIS- Laboratory of Advanced Technology and Intelligent Systems,Sousse,Tunisie,4023
3. Professorship of Measurement and Sensor Technology,Technische Universität Chemnitz,Chemnitz,Germany