1. Department of Electrical Engineering, Riphah International University, Islamabad 46000, Pakistan
2. Department of Computer Science, RMIT University, Melbourne 3001, Australia
3. Department of Mathematics, College of Science, King Khalid University, Abha 61421, Saudi Arabia
4. Department of Information Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
5. Department of Information Technology, University of Tabuk, Tabuk 71491, Saudi Arabia
6. School of Science, Technology and Health, York St. John University, York YO31 7EX, UK