2016/12/18 by Ahmed El Shafie, Ahmed Sultan, Shafie, Ahmed El +4
Computer Science · Engineering · Mathematics · #Cooperative Communication and Network Coding #Full-Duplex Wireless Communications #Wireless Communication Security Techniques #cs.IT #cs.NI #math.IT
paper · pdf · doi:10.48550/arxiv.1612.05881
Published in IEEE Comm Letters http://ieeexplore.ieee.org/document/7506333/
arxiv created 2016/12/18 · arxiv updated 2016/12/20
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 strategies, namely randomize-and-forward and decode-and-forward 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.