1. Department of Electrical and Electronics Engineering, Dogus University, Istanbul 34775, Turkey
2. Department of Electronics and Telecommunications, Politecnico di Torino, 10129 Turin, Italy
3. Department of Measurements and Optical Electronics, Politehnica University Timisoara, 300006 Timisoara, Romania
4. Istituto di Elettronica e di Ingegneria dell’Informazione e delle Telecomunicazioni, National Research Council, 10129 Turin, Italy
5. Department of Industrial Engineering and Management, University of Medicine, Pharmacy, Science and Technology “George Emil Palade”, 540139 Targu Mures, Romania