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

• Published in: IET communications Vol. 14; no. 7; pp. 1155 - 1161
• Main Authors: Khan, Amjad Saeed, Chatzigeorgiou, Ioannis, Zheng, Gan, Basutli, Bokamoso, Chuma, Joseph M, Lambotharan, Sangarapillai
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 22.04.2020
• Subjects: aggregated power controlled transmissions; coded packets; confidential message; jamming; network coding; network security; opportunistic relaying; physical layer security design; power control; probability; radio networks; random linear network coding; relay networks (telecommunication); relay transmissions; relay‐aided device‐to‐device communication; Research Article; telecommunication security; wireless channels; telecommunication security; network coding; radio networks; random linear network coding; network security; coded packets; probability; jamming; opportunistic relaying; relay-aided device-to-device communication; relay transmissions; confidential message; power control; wireless channels; aggregated power controlled transmissions; relay networks (telecommunication); physical layer security design
• ISSN: 1751-8628; 1751-8636; 1751-8636
• DOI: 10.1049/iet-com.2019.0767

The authors investigate physical layer security design, which employs a 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.