Outage Constrained Robust Transmit Design for Secure Cognitive Radio With Practical Energy Harvesting

Ni, Lei; Da, Xinyu; Hu, Hang; Huang, Yangchao; Xu, Ruiyang; Zhang, Miao

doi:10.1109/access.2018.2881477

Cited by 20 publications

(15 citation statements)

References 38 publications

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“…Similarly to the power consumption model available in the literature [16], the total power consumption at ST is denoted by P t = 1…”

Section: A System Modelmentioning

confidence: 99%

“…We note that the resulting problem in (15) becomes primal decomposable, which could be further recast as a two-stage optimization problem. i.e., the outer problem (16), shown as follows…”

Section: B a Two-stage Optimization For The Problem (15)mentioning

confidence: 99%

“…As can be seen, the outer problem (16) is a single-variable optimization problem, whose optimal solution can be obtained through performing an one dimensional search such as golden section search. For (16), it is readily known that λ ≤ 1, and less obvious is the lower bound on λ. Moreover, we find that if problem (7) is feasible, (1 + h H s Wh s )λ ≥ 1 will always be satisfied.…”

Section: B a Two-stage Optimization For The Problem (15)mentioning

confidence: 99%

“…In other words, the SDR is tight and the global optimal solution to the primal problem (7) can be guaranteed. The rank-profile can be proved via a similar way in [16] and [18], this part is omitted due to the limited space in this letter.…”

Section: B a Two-stage Optimization For The Problem (15)mentioning

confidence: 99%

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Outage Constrained Robust Secrecy Energy Efficiency Maximization for EH Cognitive Radio Networks

et al. 2020

IEEE Wireless Commun. Lett.

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In this letter, we investigate the outage-constrained robust secure design in a multiple-input single-output (MISO) energy harvesting (EH) cognitive radio network (CRN), where the malicious energy receivers (ERs) may wiretap the desired information and hence can be treated as potential eavesdroppers (Eves). In particular, considering a non-linear energy harvesting (EH) model, our objective is to design the transmit covariance matrix to maximize the secrecy energy efficiency (SEE) under the given outage probability and transmit power constraints, while satisfying the EH and quality-of-service (QoS) requirements. To tackle the original non-convex problem, we resort to semidefinite relaxation (SDR) and Bernstein-type inequality (BTI)based approximations to reformulate it into a tractable form. Then, the original problem becomes decomposable and can be efficiently solved by handling a two-stage optimization problem. At last, numerical results are provided to demonstrate the effectiveness and superior performance of the proposed design in comparisons with the existing schemes. Index Terms-Cognitive radio network (CRN), energy harvesting, secrecy energy efficiency (SEE), outage probability.

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“…Similarly to the power consumption model available in the literature [16], the total power consumption at ST is denoted by P t = 1…”

Section: A System Modelmentioning

confidence: 99%

“…We note that the resulting problem in (15) becomes primal decomposable, which could be further recast as a two-stage optimization problem. i.e., the outer problem (16), shown as follows…”

Section: B a Two-stage Optimization For The Problem (15)mentioning

confidence: 99%

Section: B a Two-stage Optimization For The Problem (15)mentioning

confidence: 99%

Section: B a Two-stage Optimization For The Problem (15)mentioning

confidence: 99%

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Outage Constrained Robust Secrecy Energy Efficiency Maximization for EH Cognitive Radio Networks

et al. 2020

IEEE Wireless Commun. Lett.

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“…Nevertheless, as a helper, the relay may be unenthusiastic to utilize its private energy for assistance activity. Currently modern technologies make feasible for self-powered terminals that can scavenge energy with high energy conversion efficiency from green energy sources (e.g., radio frequency signals [5,6]). Consequently, the relay can utilize its scavenged energy to lengthen the transmission range of the source, better remaining the continuous connection between the source and the destination.…”

Section: Introductionmentioning

confidence: 99%

Relaying Communications in Energy Scavenging Cognitive Networks: Secrecy Outage Probability Analysis

Ho-Van

Do-Dac

2019

Wireless Communications and Mobile Computing

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This paper exploits a self-powered secondary relay to not only maintain but also secure communications between a secondary source and a secondary destination in cognitive radio networks when source-destination channel is unavailable. The relay scavenges energy from radio frequency (RF) signals of the primary transmitter and the secondary source and consumes the scavenged energy for its relaying activity. Under the maximum transmit power constraint, Rayleigh fading, the primary outage constraint, and the interference from the primary transmitter, this paper suggests an accurate closed-form expression of the secrecy outage probability to promptly assess the security performance of relaying communications in energy scavenging cognitive networks. The validity of the proposed expression is verified by computer simulations. Numerous results demonstrate the security performance saturation in the range of large maximum transmit power or high required outage probability of primary users. Moreover, the security performance is a function of several system parameters among which the relay's position, the power splitting factor, and the time splitting factor can be optimized to achieve the minimum secrecy outage probability.

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Countermeasures for Primary User Emulation Attack: A Comprehensive Review

Mishra

Srivastava

Sharan

2020

Wireless Pers Commun

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Outage Constrained Robust Transmit Design for Secure Cognitive Radio With Practical Energy Harvesting

Cited by 20 publications

References 38 publications

Outage Constrained Robust Secrecy Energy Efficiency Maximization for EH Cognitive Radio Networks

Outage Constrained Robust Secrecy Energy Efficiency Maximization for EH Cognitive Radio Networks

Relaying Communications in Energy Scavenging Cognitive Networks: Secrecy Outage Probability Analysis

Countermeasures for Primary User Emulation Attack: A Comprehensive Review

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