Int. J. Signal and Imaging Systems Engineering, Vol. 11, No. 3, 2018 129 Nakagami-m channel secrecy: a receiver assisted scheme Lukman A. Olawoyin*, Oloyede A. Abdulkarim, Faruk Nasir and Munzali A. Abana Telecommunication Science Department, University of Ilorin, 234, Nigeria Email: lolawoyin@bupt.edu.cn Email: olawoyin.la@unilorin.edu.ng Email: oloyede.aa@unilorin.edu.ng Email: faruk.n@unilorin.edu.ng Email: munzal21@gmail.com *Corresponding author Abstract: This paper considers the effect of an end-user assisted jamming scheme to achieve a secure transmission of information over Nakagami-m fading channel in wireless broadcast system. In this work, full duplex (FD) antenna at the legitimate receiver (LR) was introduced in a way that the LR will contribute additional noise to the system to degrade the eavesdropper’s channel. The approach achieves secured transmission with improved secrecy when compared to the conventional method that artificial noise (AN) scheme is transmitted from the transmitter only. Numerical analysis and simulation results show an improvement in the secrecy performance metrics. Keywords: artificial noise; full-duplex; eavesdropper; physical layer; secrecy capacity; secrecy outage probability. Reference to this paper should be made as follows: Olawoyin, L.A., Abdulkarim, O.A., Nasir, F. and Abana, M.A. (2018) ‘Nakagami-m channel secrecy: a receiver assisted scheme’, Int. J. Signal and Imaging Systems Engineering, Vol. 11, No. 3, pp.129–135. Biographical notes: Lukman A. Olawoyin received his Bachelor of Engineering (BE) in Electrical/Electronic Engineering at the Federal University of Technology, Akure, Nigeria in 2003. He obtained a Master of science (MSc) in Modern Digital Communication System (MDCS) at the University of Sussex, UK in 2010. In 2016, he obtained his doctoral degree in Information and Signal Processing at the Beijing University of Posts and Telecommunication (BUPT), Beijing, China. His area of research interest is on signal processing, multiuser system, MIMO system, D2D communication and physical layer security. Oloyede A. Abdulkarim received his first degree in Electrical Engineering from Bayero University in Kano, Nigeria MSc and PhD in Telecommunications and Electronics Engineering respectively from the Department of Electronics, University of York, UK in 2008, 2011 and 2014 respectively. His current research interests includes but not limited to engineering education, network security, cognitive green radio, dynamic spectrum access, economic models for the radio spectrum and Spectrum Pricing. Faruk Nasir received the PhD in Electrical Engineering at University of Ilorin, Nigeria, MSc in Mobile and High Speed Telecommunication Networks from Oxford Brookes University, Oxford, UK in 2010 and BSc in Physics from Kano University of Science and Technology, Kano State, Nigeria. From 2015 to 2016, he was a Postdoctoral Researcher at the Department of COMNET, school of Electrical Engineering, Aalto University, Finland. His research interests lie in the areas of heterogeneous networks, Spectrum management, Channel modelling, energy efficiency. Munzali A. Abana received his Bachelor degree in Electrical and Electronics Engineering from the University of Maiduguri, Nigeria, in 2006, and the MSc in network communications from Loughborough University, UK, in 2010. He obtained his PhD in 2016 at Beijing University of Posts and Telecommunications, Beijing, China in wireless communication. His research interest Copyright © 2018 Inderscience Enterprises Ltd.