1. Center
of Excellence for Green Nanotechnologies, Joint Centers of Excellence Program, King Abdulaziz City for Science and Technology, P.O Box 6086, Riyadh 11442, Saudi Arabia
2. Department
of Electrical and Computer Engineering, University of Jeddah, 285 Dhahban 23881, Saudi Arabia
3. Department
of Electrical and Computer Engineering, King Abdulaziz University, Abdullah Sulayman Street, Jeddah 22254, Saudi Arabia
4. Department
of Electrical Engineering, University of California, Los Angeles, 420 Westwood Plaza, 5412 Boelter Hall, Los
Angeles, California 90095, United States