Relay Cooperative Beamforming Algorithm Based on Probabilistic Constraint in SWIPT Secrecy Networks

Hu, Zhentao; Xie, Dongdong; Jin, Mingqi; Zhou, Lin; Li, Jifang

doi:10.1109/access.2020.3026359

Cited by 10 publications

(10 citation statements)

References 29 publications

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“…Next, we present extensive numerical simulation results to prove the performance of the proposed algorithm. Our comparison algorithm comes from similar works presented in [ 7 , 12 , 13 ]. As shown in Figure 1 , we assume that the S is located at the edge of a circular region and the legitimate destination is located at a symmetrical position of the source on the circle.…”

Section: Complexity Analysis and Numerical Resultsmentioning

confidence: 99%

“…Although AN is introduced to interfere with eavesdroppers, the security of the system is still deteriorating in the presence of CSI errors. Since designs for CSI error follow Gaussian distribution, the probabilistic constraint beamforming (PC-SPS) algorithm [ 13 ] has a certain robustness, and its performance is slightly better than the CJ-SPS algorithm, while the proposed algorithm can achieve a higher security rate at the ellipsoidal bounded CSI error.…”

Section: Complexity Analysis and Numerical Resultsmentioning

confidence: 99%

“…Therefore, how to design a robust beamforming algorithm with tolerance for CSI disturbance to improve the security of SWIPT-assisted communication system is challenging work. Supposing CSI error follows Gaussian distribution, the optimal security rate is achieved by the joint optimization of relay beamformer and power allocation factors [ 13 ]. Assuming the CSI error between the base station and the user in a bounded ellipsoid region, a robust beamforming scheme based on S-procedure is proposed to achieve the minimum base station transmission power [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…It is worth noting that the difference between our work and the above works are the following. Different from [ 13 ], we discussed the bounded ellipsoid model of the channel error instead of the Gaussian distribution model, which is widely used in the literature [ 14 , 15 , 16 , 17 , 18 ]. Although the bounded ellipsoid channel error model is discussed in [ 14 , 15 , 16 , 17 , 18 ], the point to point algorithm proposed in [ 14 , 16 , 17 ] can not be directly generalized to our SWIPT relay network.…”

Section: Introductionmentioning

confidence: 99%

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Robust Security Beamforming for SWIPT-Assisted Relay System with Channel Uncertainty

Guo

Jin

et al. 2022

Sensors

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This paper considers the physical layer security (PLS) of a simultaneous wireless information and power transfer (SWIPT) relay communication system composed of a legitimate source–destination pair and some eavesdroppers. Supposing a disturbance of channel status information (CSI) between relay and eavesdroppers in a bounded ellipse, we intend to design a robust beamformer to maximum security rate in the worst case on the constraints of relay energy consumption. To handle this non-convex optimization problem, we introduce a slack variable to transform the original problem into two sub-problems firstly, then an algorithm employing a semidefinite relaxation (SDR) technique and S-procedure is proposed to tackle above two sub-problems. Although our study was conducted in the scene of a direct link among source, destination, and eavesdroppers that is non-existing, we demonstrate that our conclusions can be easily extended to the scene for which a direct link among source, destination and eavesdroppers exist. Numerical simulation results compared with the benchmark scheme are provided to prove the effectiveness and superior performance of our algorithm.

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Section: Complexity Analysis and Numerical Resultsmentioning

confidence: 99%

Section: Complexity Analysis and Numerical Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Robust Security Beamforming for SWIPT-Assisted Relay System with Channel Uncertainty

Guo

Jin

et al. 2022

Sensors

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“…Furthermore, Hu Z explored physical layer security of SWIPT relay network with imperfect the CSI model. An algorithm is presented to optimize secret rate of SWIPT network in the constraints of relay forward power and eavesdroppers SINR [30]. Cao and Wang studied the security transmission of uplink NOMA with the aid of the EH receivers.…”

mentioning

confidence: 99%

Physical layer security transmission scheme based on artificial noise in cooperative SWIPT NOMA system

Jin

Xie

et al. 2021

J Wireless Com Network

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Aiming at high energy consumption and information security problem in the simultaneous wireless information and power transfer (SWIPT) multi-user wiretap network, we propose a user-aided cooperative non-orthogonal multiple access (NOMA) physical layer security transmission scheme to minimize base station (BS) transmitted power in this paper. In this scheme, the user near from BS is adopted as a friendly relay to improve performance of user far from BS. An energy harvesting (EH) technology-based SWIPT is employed at the near user to collect energy which can be used at cooperative stage. Since eavesdropper in the downlink of NOMA system may use successive interference cancellation (SIC) technology to obtain the secrecy information of receiver, to tackle this problem, artificial noise (AN) is used at the BS to enhance security performance of secrecy information. Moreover, semidefinite relaxation (SDR) method and successive convex approximation (SCA) technique are combined to solve the above non-convex problem. Simulation results show that in comparison with other methods, our method can effectively reduce the transmitted power of the BS on the constraints of a certain level of the secrecy rates of two users.

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Improving the Security and Reliability of Energy-Constrained Two-Way Relay Systems With Nonlinear Energy Harvesting

Li,

Wang,

Liang

et al. 2023

IEEE Access

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This paper presents a novel three-time slot transmission protocol designed for energyconstrained two-way relay systems. In a departure from traditional energy sources, our approach serves a dual purpose by not only providing power to the system but also significantly enhancing its security. We leverage both Physical-layer network coding (PNC) and bit-level Exclusive OR (XOR) technology to amplify system capacity and bolster security. Given the unavailability of exact closed-form solutions, we utilize tight upper bounds for the signal-to-noise ratio (SNR) to derive approximate closed-form results, specifically focusing on outage and intercept performance under Rayleigh channel conditions. We also provide performance bounds for outage and intercept probabilities in the high SNR regime. Our simulation results validate the accuracy of our derived probabilities, demonstrating consistency with Monte Carlo simulations. Furthermore, our investigation reveals that the time allocation factor has minimal impact on the security and reliability of the proposed protocol, particularly under high SNR conditions. In addition, we conduct a comparative analysis between the XOR scheme introduced in this article and non-XOR (NXOR) systems. This analysis underscores the superior security-reliability tradeoff of our approach, particularly in scenarios characterized by poor channel conditions between the energy source user and potential eavesdroppers.INDEX TERMS two-way relay, energy harvesting, physical-layer network coding, cooperative communications, Rayleigh channel.

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Relay Cooperative Beamforming Algorithm Based on Probabilistic Constraint in SWIPT Secrecy Networks

Cited by 10 publications

References 29 publications

Robust Security Beamforming for SWIPT-Assisted Relay System with Channel Uncertainty

Robust Security Beamforming for SWIPT-Assisted Relay System with Channel Uncertainty

Physical layer security transmission scheme based on artificial noise in cooperative SWIPT NOMA system

Improving the Security and Reliability of Energy-Constrained Two-Way Relay Systems With Nonlinear Energy Harvesting

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