[1] Sichuan Normal Univ, Sch Business, Chengdu, Sichuan, Peoples R China
[2] King Abdulaziz Univ, Fac Engn, Dept Elect & Comp Engn, Commun Syst & Networks CSN Res Grp, Jeddah, Saudi Arabia
[3] Quaid I Azam Univ, Dept Math, Islamabad, Pakistan
[4] King Abdulaziz Univ, Fac Sci, Dept Math, Nonlinear Anal & Appl Math NAAM Res Grp, Jeddah, Saudi Arabia