1. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, China
2. Department of Telecommunication, Quaid-e-Awam University of Engineering, Science and Technology, Nawabshah, Pakistan
3. College of Computer Science and Information Systems, Najran University, Najran, Saudi Arabia
4. Department of Artificial Intelligence, Quaid-e-Awam University of Engineering, Science and Technology, Nawabshah, Pakistan