1. Department of Physics, College of Science, University of Raparin, Sulaymaniyah, Iraq
2. Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
3. Engineering Optimization & Modeling Center, Reykjavik University, Reykjavik, Iceland
4. Physics Department, College of Education, Salahaddin University, Erbil, Iraq
5. Telecommunication Engineering Department, University of Engineering and Technology, Mardan, Pakistan
6. Department of Electronics Engineering, Lorestan University, Khorramabad, Iran
7. Department of Information and Communication Technology, Marwadi University, Rajkot, Gujarat, India
8. Department of Signal Theory and Communications, Universidad Carlos III de Madrid, Leganés, Spain