1. National Mobile Communications Research Laboratory, Southeast University, Nanjing, China
2. School of Information Technology, Halmstad University, Halmstad, Sweden
3. Department of Digital Industry Technologies, National and Kapodistrian University of Athens, Evripus Campus, Athens, Greece
4. Department of Electrical Engineering, Chalmers University of Technology, Gothenburg, Sweden
5. Interdisciplinary Centre for Security, Reliability and Trust (SnT), University of Luxembourg, Luxembourg City, Luxembourg