1. School of Computer Science, Nanjing University of Information Science and Technology, Nanjing, China
2. School of Computer and Information, Anhui Normal University, Wuhu, China
3. Helen and John C. Hartmann Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, NJ, USA
4. School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
5. Department of Electrical and Computer Engineering, Faculty of Engineering, and the K. A. CARE Energy Research and Innovation Center, King Abdulaziz University, Jeddah, Saudi Arabia