Secure Full-Duplex Spectrum-Sharing Wiretap Networks with Different Antenna Reception Schemes

Tao Zhang, Yueming Cai, Yuzhen Huang, Trung Q. Duong, Weiwei Yang

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)
336 Downloads (Pure)

Abstract

In this paper, we investigate the secrecy performance of full-duplex multi-antenna spectrum-sharing wiretap networks, in which a jamming signal is simultaneously transmitted by the full-duplex secondary receiver (Bob) based on the zero forcing beamforming (ZFB) algorithm. For the security enhancement, we propose the two antenna reception schemes, i.e., (i) random selection combining (RSC) where Bob selects LB antennas at random to combine the received signals, and (ii) generalized selection combining (GSC) where Bob selects LB strongest antennas to combine the received signals. We derive the exact closed-form expressions for the secrecy outage probability of fullduplex multi-antenna spectrum-sharing wiretap networks with ZFB algorithm. In order to explore a new design of the proposed schemes, we provide tractable asymptotic approximations for the secrecy outage probability in high signal-to-noise ratio regime under two distinct scenarios. From the analysis, we demonstrate that a) when the main channel is much better than the eavesdropper’s channel, GSC/ZFB scheme achieves full diversity NB while RSC/ZFB scheme only achieves partial diversity LB, b) GSC/ZFB scheme achieves better secrecy performance than RSC/ZFB with different antenna numbers at Bob.
Original languageEnglish
Number of pages11
JournalIEEE Transactions on Communications
Early online date04 Nov 2016
DOIs
Publication statusEarly online date - 04 Nov 2016

Fingerprint

Dive into the research topics of 'Secure Full-Duplex Spectrum-Sharing Wiretap Networks with Different Antenna Reception Schemes'. Together they form a unique fingerprint.

Cite this