1. School of Computer Science, China University of Geosciences, Wuhan, China
2. School of Computer Science, China University of Geosciences, Wuhan, China and College of Computer Science and Technology, National University of Defense Technology, China
3. Wuhan Maritime Communication Research Institute, Wuhan, China
4. Anhui Engineering Research Center of Intelligent Perception and Elderly Care, Chuzhou University, China, Anhui Engineering Research Center for Intelligent Applications and Security of Industrial Internet, Anhui University of Technology, China, and School of Computer Science, China University of Geosciences, Wuhan, China
5. Department of Information Systems and Cyber Security,University of Texas at San Antonio, USA
6. Department of Computer Science, University of Exeter, UK