Open AccessReview by Pranjal Barman 1,*, Lachit Dutta 2 and Brian Azzopardi 3 1 Indian Institute of Technology Guwahati-Technology Innovation and Development Foundation, Guwahati 781039, Assam, India 2 Department of Electronics and Communication Engineering, Gauhati University, Guwahati 781014, Assam, India 3 MCAST Energy Research Group, Institute of Engineering and Transport, Malta College of Arts, Science and Technology (MCAST), Main Campus, Corradino Hill, PLA9032 Paola, Malta * Author to...