1. Engineering Research Center of Intelligent Airground Integrated Vehicle and Traffic Control, Ministry of Education, Xihua University, Chengdu, China
2. College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China
3. Electrical Engineering Department, École de technologie supérieure, Montreal, QC, Canada
4. Department of Software Engineering, College of Computer and Information Sciences, King Saud University, Riyadh, Saudi Arabia
5. Department of Computer Science Engineering, University Institute of Technology, Rajiv Gandhi Proudyogiki Vishwavidyalaya (Technological University of Madhya Pradesh), Madhya Pradesh, India