1. Department of Electrical and Computer Engineering, COMSATS University Islamabad, Attock, Pakistan
2. Department of Computer Engineering, Hankuk University of Foreign Studies, Gyeonggi-do, Yongin-si, South Korea
3. Department of Computer Science and Engineering, Sejong University, Seoul, South Korea
4. Security and Optimization for Networked Globe Laboratory (SONG Lab), Embry-Riddle Aeronautical University, Daytona Beach, FL, USA