Physical Layer Security of a Multiantenna-Based CR Network With Single and Multiple Primary Users

Singh, Ajay; Bhatnagar, Manav R.; Mallik, Ranjan K.

doi:10.1109/tvt.2017.2722014

Cited by 38 publications

(45 citation statements)

References 42 publications

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“…As the secrecy capacity is negative, the eavesdroppers will intercept the signal and an intercept event occurs. In fact, the intercept probability [12][13][14][15] is the probability of zero secrecy capacity and acts as an important secrecy performance metric. For relay k, the intercept probability is defined as follows:…”

Section: Intercept Behavior Analysismentioning

confidence: 99%

Secure AF relaying with efficient partial relay selection scheme

Chu

Liu

Nguyen

2019

Int J Communication

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Summary This paper evaluates the secrecy performance for the amplify‐and‐forward (AF) protocol with partial relay selection (PRS) schemes in the scenario of multiple independent but not necessarily identically distributed eavesdroppers. The secrecy performances of the first‐hop and second‐hop PRS schemes are revisited. Given the secrecy data rate, an efficient PRS scheme is presented, which selects the relay based on the instantaneous channel state information (CSI) of either the first or second hop according to the statistical CSI of two hops. The proposed PRS scheme provides the trade‐off between the two‐hop and one‐hop PRS criteria. Results show that the secrecy outage probability (SOP) performance of the proposed scheme is close to that of the conventional opportunistic relaying in the medium main‐to‐eavesdropper ratio (MER) regions. As for the intercept probability, the second‐hop scheme achieves the highest diversity order among PRS schemes and its performance depends on the overall eavesdroppers' behavior not on individual effects of the specific relay. The proposed criterion also outperforms the first‐hop PRS scheme. Simulation results finally substantiate the accuracy of the theoretical analysis.

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Section: Intercept Behavior Analysismentioning

confidence: 99%

Secure AF relaying with efficient partial relay selection scheme

Chu

Liu

Nguyen

2019

Int J Communication

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“…[10][11][12][13][14] The intercept probability is defined as the probability that the instantaneous secrecy capacity is negative. [10][11][12][13][14] The intercept probability is defined as the probability that the instantaneous secrecy capacity is negative.…”

Section: Introductionmentioning

confidence: 99%

“…[10][11][12][13][14] The intercept probability is defined as the probability that the instantaneous secrecy capacity is negative. Research works in Krikidis, 1 Bao et al 2 Liu et al, 3 Fan et al, 4 Nguyen and Kim, 5 Jindal et al, 6 Dan et al, 7 Hwang, 8 Fan et al, 9 Zou et al, 10 Ding et al, 11 Rawat et al, 13 and Singh 14 emphasized on the secrecy performance over Rayleigh fading channels, which is only a special case of Nakagami-m fading. Zou et al 10 explored the intercept probabilities of the optimal and conventional 2-hop relay selection schemes for AF relaying.…”

Section: Introductionmentioning

confidence: 99%

“…Another secrecy performance metric called intercept probabilities had been evaluated in literatures. [10][11][12][13][14] The intercept probability is defined as the probability that the instantaneous secrecy capacity is negative. As the secrecy capacity is negative, the eavesdroppers will intercept the signal and an intercept event happens.…”

Section: Introductionmentioning

confidence: 99%

“…Substituting (A.1) into(12),(13)can be obtained.APPENDIX B. PROOF OF THEOREM 2For high MER regions, the asymptotic PDF of |g k | 2 is f g k x ð Þ ≈ α m g k g k x m g k −1 =Γ m g k .1) into(14),(15) can be obtained.APPENDIX C. PROOF OF THEOREM 5…”

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confidence: 99%

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Secrecy performance analysis of AF relaying with relay selection scheme over Nakagami‐m fading channels

Chu

2018

Int J Communication

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This paper investigates the secrecy outage probability (SOP) and intercept behavior for the amplify-and-forward network over Nakagami-m fading channels. Relay selection schemes are evaluated. The optimal and suboptimal criterions require the instantaneous and statistical channel state information of the eavesdroppers' channels, respectively. The enhanced 2-hop criterion needs the additional information of the target secrecy rate for relay selection. Theoretical analysis reveals that the diversity order of the SOP is dominated by the minimum fading figures of the source-relay and relay-destination channels, while that of the intercept probability depends on the fading figure of the relay-destination channel. In the multirelay scenario, the optimal, suboptimal, and enhanced 2-hop scheme achieve the same diversity orders of the SOP. For the intercept probability, the optimal and second-hop relay selection schemes provide the same diversity order, while the diversity orders of the suboptimal and enhanced 2-hop schemes are the same. Simulation results finally substantiate the accuracy of the theoretical analysis.KEYWORDS amplify-and-forward, eavesdropper, intercept probability, Nakagami-m fading, secrecy outage probability

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The SOP of the System with TAS Based Underlay CRN

Thakur

Kumar

2020

Advances in Intelligent Systems and Computing

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Physical Layer Security of a Multiantenna-Based CR Network With Single and Multiple Primary Users

Cited by 38 publications

References 42 publications

Secure AF relaying with efficient partial relay selection scheme

Secure AF relaying with efficient partial relay selection scheme

Secrecy performance analysis of AF relaying with relay selection scheme over Nakagami‐m fading channels

The SOP of the System with TAS Based Underlay CRN

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