1. School of Physical Science and TechnologySouthwest Jiaotong University Chengdu China
2. Department of Electrical EngineeringGovernment College University Faisalabad Faisalabad Pakistan
3. School of Mathematics and PhysicsUniversity of South China Hengyang China
4. Department of Electrical Engineering, Faculty of EngineeringIslamic University in Madinah Al‐Madinah Saudi Arabia