1. Department of Electrical & Electronic Engineering, Khulna University of Engineering and Technology, Khulna 9203, Bangladesh
2. Department of Electrical & Biomedical Engineering, University of Nevada, Reno, Nevada 89557, United States
3. School of Physics, The University of Sydney, Sydney,New South Wales 2006, Australia
4. School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, ON K1N6N5, Canada