1. Laboratory of engineering sciences and techniques (STI), Department of Physic, Faculty of Science and Technology Errachidia (FSTE), Moulay Ismail University, Meknes, BP-509 Boutalamine Errachidia 52 000, MOROCCO
2. Laboratory of Networks, Computer Science, Telecommunication, Multimedia (RITM), Department of Electrical Engineering, High School of Technology (ESTC), Hassan II University, Casablanca, KM 7 route d'el jadida BP 8012Oasis Casablanca MOROCCO