Physical-Layer Security for Full Duplex Communications With Self-Interference Mitigation

Zhu, Fengchao; Gao, Feifei; Zhang, Tao; Sun, Ke; Mao, Yao

doi:10.1109/twc.2015.2472527

Cited by 112 publications

(72 citation statements)

References 35 publications

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“…Hence, it is of vital importance to study the PLS in relay networks [12]- [15]. There are two fundamental relaying protocols: amplify-and-forward (AF) and decode-and-forward (DF).…”

Section: Introductionmentioning

confidence: 99%

Secure Multiple Amplify-and-Forward Relaying With Cochannel Interference

Fan

Lei

Yang

et al. 2016

IEEE J. Sel. Top. Signal Process.

194

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“…Hence, it is of vital importance to study the PLS in relay networks [12]- [15]. There are two fundamental relaying protocols: amplify-and-forward (AF) and decode-and-forward (DF).…”

Section: Introductionmentioning

confidence: 99%

Secure Multiple Amplify-and-Forward Relaying With Cochannel Interference

Fan

Lei

Yang

et al. 2016

IEEE J. Sel. Top. Signal Process.

194

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“…Observing the analytical and asymptotic results presented in (23), (26), (29) and (32), it is easy to find that our analysis is developed based on the statistical information of eavesdropping channels. This indicates that the statistical information of the eavesdropping channels is utilized to evaluate the secrecy outage probabilities for Criterion I and II.…”

Section: Theoremmentioning

confidence: 97%

Exploiting Direct Links for Physical Layer Security in Multiuser Multirelay Networks

Fan

Yang

Duong

et al. 2016

IEEE Trans. Wireless Commun.

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Abstract-We present two physical layer secure transmission schemes for multi-user multi-relay networks, where the communication from M users to the base station is assisted by direct links and by N decode-and-forward relays. In this network, we consider that a passive eavesdropper exists to overhear the transmitted information, which entails exploiting the advantages of both direct and relay links for physical layer security enhancement. To fulfill this requirement, we investigate two criteria for user and relay selection and examine the achievable secrecy performance. Criterion I performs a joint user and relay selection, while Criterion II performs separate user and relay selections, with a lower implementation complexity. We derive a tight lower bound on the secrecy outage probability for Criterion I and an accurate analytical expression for the secrecy outage probability for Criterion II. We further derive the asymptotic secrecy outage probabilities at high transmit signal-to-noise ratios and high main-to-eavesdropper ratios for both criteria. We demonstrate that the secrecy diversity order is min (M N, M + N ) for Criterion I, and N for Criterion II. Finally, we present numerical and simulation results to validate the proposed analysis, and show the occurrence condition of the secrecy outage probability floor.Index Terms-Physical layer security, multi-user multi-relay networks, direct links, secrecy outage probability, secrecy diversity order.

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“…In this case, assuming node a is the IFD-capable node, the frame structure in Fig. Furthermore, a simultaneous data reception-jamming transmission system [5] and IFD wireless-powered communication network [7] are special cases of such a model. The HD node receiving signals from the IFD node a estimates G (the wireless channel for downlink transmission), while node a estimates H a .…”

Section: Sic In Data Transmission Fieldmentioning

confidence: 99%

“…the time-domain expression of the ith OFDM symbol transmitted by node a in the training field, obtained in the same way as (3) through(5). As shown in (SI channel estimation at node a in digital frequency domain based on multi-symbol LS estimation and DFT processing.…”

mentioning

confidence: 99%

Novel Digital Cancelation Method in Presence of Harmonic Self-Interference

Gwak

Lee

et al. 2017

ETRI Journal

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In‐band full‐duplex (IFD) communication has recently attracted a great deal of interest because it potentially provides a two‐fold spectral efficiency increase over half‐duplex communications. In this paper, we propose a novel digital self‐interference cancelation (DSIC) algorithm for an IFD communication system in which two nodes exchange orthogonal frequency‐division multiplexing (OFDM) symbols. The proposed DSIC algorithm is based on the least‐squares estimation of a self‐interference (SI) channel with block processing of multiple OFDM symbols, in order to eliminate the fundamental and harmonic components of SI induced through the practical radio frequency devices of an IFD transceiver. In addition, the proposed DSIC algorithm adopts discrete Fourier transform processing of the estimated SI channel to further enhance its cancelation performance. We provide a minimum number of training symbols to estimate the SI channel effectively. The evaluation results show that our proposed DSIC algorithm outperforms a conventional algorithm.

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Physical-Layer Security for Full Duplex Communications With Self-Interference Mitigation

Cited by 112 publications

References 35 publications

Secure Multiple Amplify-and-Forward Relaying With Cochannel Interference

Secure Multiple Amplify-and-Forward Relaying With Cochannel Interference

Exploiting Direct Links for Physical Layer Security in Multiuser Multirelay Networks

Novel Digital Cancelation Method in Presence of Harmonic Self-Interference

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