Abstract
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.
Highlights
Due to the broadcast nature of wireless communication, information transmission is not secure
The authors conducted a review of various studies focused on the secrecy of wireless communication transmission to eavesdroppers in the relaying node, where the cooperative communication schemes used in the Decode and Forward (DF) and AF relaying protocols were analyzed and equated with different systems
This paper presents an investigation of a three-hop relaying system with a single relay active at each individual hop, where one source–destination pair tries to communicate securely in the presence of one eavesdropper
Summary
Due to the broadcast nature of wireless communication, information transmission is not secure. The authors investigate a three-hop relaying system with a single relay active at each individual hop, where one source–destination pair tries to communicate securely in the presence of one eavesdropper. The authors conducted a review of various studies focused on the secrecy of wireless communication transmission to eavesdroppers in the relaying node, where the cooperative communication schemes used in the DF and AF relaying protocols were analyzed and equated with different systems. In [17], a full-duplex relay network was presented to improve the physical layer security in the multi-hop relaying system, and a geometric programming (GP) method was applied to solve the transmitted power allocation problem. This paper presents an investigation of a three-hop relaying system with a single relay active at each individual hop, where one source–destination pair tries to communicate securely in the presence of one eavesdropper.
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