Physical-Layer Security with Full-Duplex Transceivers and Multiuser Receiver at Eve

Nurul Huda Mahmood, Imran Shafique Ansari, Petar Popovski, Preben Elgaard Mogensen, Khalid A. Qaraqe

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Resumé

Full-duplex communication enables simultaneous transmission from both ends of a communication link, thereby promising significant performance gains. Generally, it has been shown that the throughput and delay gains of full-duplex communication are somewhat limited in realistic network settings, leading researchers to study other possible applications that can accord higher gains. The potential of full-duplex communication in improving the physical-layer security of a communication link is investigated in this contribution. We specifically present a thorough analysis of the achievable ergodic secrecy rate and the secrecy degrees of freedom with full-duplex communication in the presence of a half-duplex eavesdropper node, with both single-user decoding and multi-user decoding capabilities. For the latter case, an eavesdropper with successive interference cancellation and joint decoding capabilities are assumed. Irrespective of the eavesdropper capabilities and channel strengths, the ergodic secrecy rate with full-duplex communication is found to grow linearly with the log of the direct channel SNR as opposed to the flattened out secrecy rate with conventional half-duplex communication. Consequently, the secrecy degrees of freedom with full-duplex is shown to be two as opposed to that of zero in half-duplex mode.
OriginalsprogEngelsk
TidsskriftIEEE Transactions on Communications
Vol/bind65
Udgave nummer10
Sider (fra-til)4392 - 4405
ISSN0090-6778
DOI
StatusUdgivet - okt. 2017

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Transceivers
Communication
Decoding
Telecommunication links
Throughput

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Mahmood, Nurul Huda ; Shafique Ansari, Imran ; Popovski, Petar ; Mogensen, Preben Elgaard ; Qaraqe, Khalid A. / Physical-Layer Security with Full-Duplex Transceivers and Multiuser Receiver at Eve. I: IEEE Transactions on Communications. 2017 ; Bind 65, Nr. 10. s. 4392 - 4405.
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Physical-Layer Security with Full-Duplex Transceivers and Multiuser Receiver at Eve. / Mahmood, Nurul Huda; Shafique Ansari, Imran; Popovski, Petar; Mogensen, Preben Elgaard; Qaraqe, Khalid A.

I: IEEE Transactions on Communications, Bind 65, Nr. 10, 10.2017, s. 4392 - 4405.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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