1. School of BusinessSichuan Normal University Chengdu China
2. Communications Systems and Networks (CSN) Research Group, Department of Electrical and Computer Engineering, Faculty of EngineeringKing Abdulaziz University Jeddah Saudi Arabia
3. Department of MathematicsQuaid‐I‐Azam University Islamabad Pakistan
4. Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Department of Mathematics, Faculty of ScienceKing Abdulaziz University Jeddah Saudi Arabia
5. School of StatisticsSouthwestern University of Finance and Economics Chengdu China
6. Business SchoolSouthwest University of Political Science & Law Chongqing China