1. Sensors for Health-care and Environmental Monitoring (SHE) Lab, Department of Electronics and Communication Engineering, Indian Institute of Information Technology Kalyani, West Bengal 741235, India
2. Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302, India
3. Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Uttarakhand 247667, India