1. Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan
2. Department of Physics, Government Post Graduate College, Nowshera, Pakistan
3. Department of Computer Science, College of Computer and Information Sciences, King Saud University, Riyadh 11633, Saudi Arabia
4. Faculty of Computer Science and IT, University of Malaya, Kuala Lampur, Malaysia
5. School of Physics and Electronics, Central South University, Changsha, China
6. Department of Computer Sciences, Quaid-i-Azam University, Islamabad, Pakistan