1. Department of Computer Science, University of Engineering & Technology (UET), Lahore 54890, Pakistan
2. Universidad Europea del Atlántico, Isabel Torres 21, 39011 Santander, Spain
3. Universidad Internacional Iberoamericana, Campeche 24560, Mexico
4. Universidad Internacional Iberoamericana, Arecibo, PR 00613, USA
5. Department of Information and Communication Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea