Physical-Layer Security of a Buffer-Aided Full-Duplex Relaying System

Type
Article

Authors
El Shafie, Ahmed
Salem, Ahmed Sultan
Al-Dhahir, Naofal

KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Online Publication Date
2016-07-07

Print Publication Date
2016-09

Date
2016-07-07

Abstract
This letter proposes a novel hybrid half-/full-duplex relaying scheme to enhance the relay channel security. A source node (Alice) communicates with her destination node (Bob) in the presence of a buffer-aided full-duplex relay node (Rooney) and a potential eavesdropper (Eve). Rooney adopts two different relaying, namely randomize-and-forward and decode-andforward relaying strategies, to improve the security of the legitimate system. In the first relaying strategy, Rooney uses a codebook different from that used at Alice. In the second relaying strategy, Rooney and Alice use the same codebooks. In addition, Rooney switches between half-duplex and full-duplex modes to further enhance the security of the legitimate system. The numerical results demonstrate that our proposed scheme achieves a significant average secrecy end-to-end throughput improvement relative to the conventional bufferless full-duplex relaying scheme.

Citation
Physical-Layer Security of a Buffer-Aided Full-Duplex Relaying System 2016:1 IEEE Communications Letters

Acknowledgements
This paper was made possible by NPRP grant number 6-149-2-058 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors.

Publisher
Institute of Electrical and Electronics Engineers (IEEE)

Journal
IEEE Communications Letters

DOI
10.1109/LCOMM.2016.2588492

arXiv
1612.05881

Additional Links
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7506333

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