1. Department of Information and Communication Engineering, Yeungnam University, Gyeongsan-si, South Korea
2. Department of Computer Engineering, Gachon University, Seongnam-si, South Korea
3. Department of Computer Science, Federal Urdu University of Arts, Science and Technology, Islamabad, Pakistan
4. School of Electrical Engineering, Anhui Polytechnic University, Jiujiang District, Wuhu, China