1. Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
2. Department of Electrical and Electronics Engineering, BITS Pilani, Goa Campus, Zuarinagar, Goa, India
3. Department of Electronics and Communication Engineering, Indian Institute of Information Technology Bhagalpur, Bhagalpur, India
4. Department of Electronics, Carleton University, Ottawa, Canada