1. Department of Electronics and Communication Engineering, Velalar College of Engineering and Technology, Erode, Tamilnadu 638012, India (Corresponding author), e-mail: s.mahendrakumar@yahoo.com, https://orcid.org/0000-0001-6966-2545
2. Department of Electrical and Electronics Engineering, Kongu Engineering College, Perundurai, Erode, Tamilnadu 638060, India