1. School of Communications and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China
2. Institute of Computer Technologies and Information Security, Southern Federal University, Taganrog, Russia
3. Applied Probability and Informatics Department, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia
4. Department of Computer Science, Kennesaw State University, Marietta, GA, USA
5. College of Computer and Information Sciences, EIAS Data Science Laboratory, Prince Sultan University, Riyadh, Saudi Arabia