Random linear network coding based physical layer security for relay-aided device-to-device communication

Saeed Khan, Amjad and Chatzigeorgiou, Ioannis and Zheng, Gan and Basulti, Bokamoso and Chuma, Joseph and Lambotharan, Sangarapillai (2020) Random linear network coding based physical layer security for relay-aided device-to-device communication. IET Communications, 14 (7). pp. 1155-1161. ISSN 1751-8628

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Abstract

We investigate physical layer security design, which employs random linear network coding with opportunistic relaying and jamming to exploit the secrecy benefit of both source and relay transmissions. The proposed scheme requires the source to transmit artificial noise along with a confidential message. Moreover, in order to further improve the dynamical behaviour of the network against an eavesdropping attack, aggregated power controlled transmissions with optimal power allocation strategy is considered. The network security is accurately characterised by the probability that the eavesdropper will manage to intercept a sufficient number of coded packets to partially or fully recover the confidential message.