1. Department of Mathematics, Chongqing Jiaotong University, Chongqing, People's Republic of China
2. State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing, People's Republic of China
3. Department of Mathematics, Huzhou University, Huzhou, People's Republic of China
4. Department of Mathematics, Yangzhou University, Yangzhou, People's Republic of China
5. School of Mathematics and Physics, Yancheng Institute of Technology, Yancheng, People's Republic of China
6. Communication Systems and Networks (CSN) Research Group, Department of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia