Geoffrey EAPPEN received his PhD degree from VIT Vellore (India) and Brunel University, London (UK), in 2021. Most recently he was a Senior Research Fellow of Council of Scientific and Industrial Research India, in the department of wireless communication (SENSE) at VIT, Vellore (T.N). His research interests include Cognitive Radio Network, Spectrum sensing Methodologies, Metaheuristic Optimization schemes, Artificial neural networks. Geoffrey joined the Signal Processing & Satellite Communications research group, SIGCOM, headed by Prof. Symeon Chatzinotas.