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