1. Department of Electrical Engineering, College of Engineering Taif University, Taif, Saudi Arabia
2. School of Electrical and Electronics Engineering, Chung-Ang University, Seoul, Korea
3. Department of Computer Science, Faculty of Electrical Engineering, Czech Technical University in Prague, Bejaia, Czech Republic
4. Department of Telecommunications and Systems Engineering, Faculty of Engineering, Universitat Autònoma de Barcelona, Barcelona, Spain