Physical Layer Secrecy by Power Splitting and Jamming in Cooperative Multiple Relay Based on Energy Harvesting in Full-Duplex Network

This article belongs to the Special Issue Innovative Antenna Systems: Challenges, Developments, and Applications. In this article, we investigated the secrecy performance of a three-hop relay network system with Power Splitting (PS) and Energy Harvesting (EH). In the presence of one eavesdropper, a signal is transferred from source to destination with the help of a relay. The source signal transmits in full-duplex (FD) mood, jamming the relay transfer signals to the destination. The relay and source employ Time Switching (TS) and Energy Harvesting (EH) techniques to obtain the power from the power beacon. In this study, we compared the Secrecy Rate of two Cooperative Schemes, Amplify and Forward (AF) and Decode and Forward (DF), for both designed systems with the established EH and PS system. The Secrecy Rate was improved by 50.5% in the AF scheme and by 44.2% in the DF scheme between the relay and eavesdropper at 40 m apart for the proposed system in EH and PS. This simulation was performed using the Monto Carlo method in MATLAB. The authors appreciate the financial support from the Science and Technology Innovation Project of Zhengzhou 2019CXZX0037, the Special Project for Inter-Government Collaboration of State Key Research and Development Program 2016YFE0118400, and NSFC U1604159. Furthermore, the funding from the Universidad Carlos III de Madrid and the European Union's Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Grant 801538 is appreciated. Additionally, the partially supported from the Researchers Supporting Project number (RSP-2021/58), King Saud University, Riyadh, Saudi Arabia, is acknowledged.