1. Department of Cyber and Technical Computing, School of Computing and Engineering, University of Gloucestershire, Park Campus, Cheltenham, Gloucestershire, U.K.
2. Department of Signal Theory and Communications, Universidad Carlos III de Madrid, 28911 Leganés, Madrid, Spain
3. Department of Computer and Engineering, Kongju National University, Cheonan, South Korea
4. Department of Computer Science, Shaheed Benazir Bhutto Women University Peshawar, Peshawar, Pakistan
5. Department of Electrical Engineering, College of Engineering in Wadi Addawasir, Prince Sattam Bin Abdulaziz University, Wadi Addawasir, Saudi Arabia
6. Department of Electric, Electronic and Communication Engineering and the Institute of Smart Cities, Public University of Navarre, Pamplona, Spain