Wireless-powered friendly jammer for physical layer security

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Authors

Liu, Wanchun
Zhou, Xiangyun
Durrani, Salman

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Volume Title

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Abstract

Exploring a cooperative node as a friendly jammer is an effective means of providing secure communication between a source-destination pair in the presence of an eavesdropper. In this work, we consider the use of a wireless-powered friendly jammer. Without relying on external energy supply, the friendly jammer is powered by the source node via wireless power transfer. We apply a simple time-switching protocol where the power transfer and jammer-assisted secure transmission occur in different time blocks. By investigating the long-term behavior of the communication protocol, we derive a closed-form expression of the throughput. We further optimize the jamming power and the rate parameters for maximizing the throughput subject to a secrecy outage probability constraint.

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Conference paper

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Open Access

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Restricted until

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