Secure two-way communication via a wireless powered untrusted relay and friendly jammer
Milad Tatar Mamaghani, Abbas Mohammadi, Phee Lep Yeoh, Ali Kuhestani

TL;DR
This paper introduces a secure two-way communication system using a wireless powered untrusted relay and friendly jammer, optimizing energy harvesting and jamming to enhance secrecy rates in a three-phase protocol.
Contribution
It presents a novel three-phase two-way secure communication scheme with a closed-form lower bound for ergodic secrecy sum rate, incorporating friendly jamming and energy harvesting.
Findings
The proposed system outperforms traditional one-way communication.
Friendly jamming significantly improves secrecy performance.
Optimal energy harvesting time and relay placement enhance security.
Abstract
In this paper, we propose a self-dependent two-way secure communication where two sources exchange confidential messages via a wireless powered untrusted amplify-and-forward (AF) relay and friendly jammer (FJ). By adopting the time switching (TS) architecture at the relay, the data transmission is accomplished in three phases: Phase I) Energy harvesting by the untrusted relay and the FJ through non-information transmissions from the sources, Phase II) Information transmission by the sources and jamming transmissions from the FJ to reduce information leakage to the untrusted relay; and Phase III) Forwarding the scaled version of the received signal from the untrusted relay to the sources. For the proposed system, we derive a new closed-form lower bound expression for the ergodic secrecy sum rate (ESSR). Numerical examples are provided to demonstrate the impacts of different system…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
