1. Deanship of Scientific Research, Umm Al Qura University, Makkah 21955, Saudi Arabia
2. Computer Engineering Department, Umm Al Qura University, Makkah 21955, Saudi Arabia
3. Department of Electrical Engineering, Ziauddin University, Karachi 74600, Pakistan
4. Telecommunications Engineering School, University of Malaga, 29010 Málaga, Spain