1. Department of EEE, Koneru Lakshmaiah Education Foundation, Andhra Pradesh, Guntur, India
2. Department of EEE, Narayana Engineering College, Andhra Pradesh, Gudur, India
3. School of Electronics Engineering, Vellore Institute of Technology, Tamil Nadu, Vellore, India
4. Faculty of Engineering and Architecture, Kore University of Enna, Enna, Italy