1. Department of Computer Software Engineering, National University of Science and Technology (NUST), Islamabad, Pakistan
2. Department of Electrical and Computer Engineering, COMSATS University Islamabad (CUI), Islamabad, Pakistan
3. Department of Quantitative Methods and Economic Informatics, Faculty of Operation and Economics of Transport and Communication, University of Zilina, Zilina, Slovakia
4. Department of Telecommunications, Faculty of Electrical Engineering and Computer Science, VSB-Technical University of Ostrava, Ostrava, Czech Republic