1. School of Computer Science and Engineering, Wuhan Institute of Technology, Wuhan, China
2. Interdisciplinary Centre for Security, Reliability and Trust (SnT), University of Luxembourg, Luxembourg
3. Department of Electrical Engineering and Information Technologies (DIETI), University of Naples “Federico II,”, Naples, Italy
4. School of Electronics and Communication Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China