1. Department of Computer Science, College of Computing, Khon Kaen University, Khon Kaen, Thailand
2. School of Computing (Innovations and Technology), University of Vaasa, Vaasa, Finland
3. Department of Computer Science, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan
4. School of Telecommunication Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand