Artificial Noise-Aided Secure SWIPT Communication Systems Using Intelligent Reflecting Surface

Xiu, Yue; Wu, Jiao; Gui, Guan; Wei, Ning; Zhang, Zhongpei

doi:10.1109/iccc49849.2020.9238914

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Moreover, QoS-constrained optimization of IRS-aided secure transmission has been investigated [36], [37], where the total transmit power is minimized while satisfying the constraint of a target secrecy rate. Also, the AN concept was introduced into the QoS-constrained IRS optimization for several specific scenarios, such as a single-user scenario without eavesdropper's channel state information (CSI) [22], a singleuser MIMO scenario [38], a single-user simultaneous wireless information and power transfer (SWIPT) scenario [39], and a two-user non-orthogonal multiple access (NOMA) scenario [40]. However, to the best of our knowledge, QoSconstrained joint optimization of the AN, IRS's phase shifts, and transmit beamforming has not been investigated for a general multi-user scenario.…”

Section: Introductionmentioning

confidence: 99%

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QoS-Constrained Energy-Efficient Beamforming and Jamming With Intelligent Reflecting Surface for Secure Multi-User Downlink

Kawai

Sugiura

2022

IEEE Trans. on Green Commun. Netw.

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In this paper, we propose an intelligent reflecting surface (IRS)-aided secure multi-user downlink, where a single base station with multiple antennas sends information and artificial noises with the aid of transmit beamforming and jamming in the presence of multiple eavesdroppers. We investigate the quality-of-service (QoS)-constrained formulation of an optimization problem of beamforming weights, jamming matrix, and the IRS's phase shifts in order to reduce the total transmit power while satisfying the constraint of a target secrecy rate. To solve the non-convex optimization problem of our framework, we propose an efficient alternating optimization-based iterative algorithm, where the original non-convex problem is divided into sub-problems. Our performance results demonstrate that the proposed scheme is capable of minimizing the transmit power at the base station while satisfying a target secrecy rate.

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Section: Introductionmentioning

confidence: 99%

“…Similar to[14],[17]-[25],[28]-[31],[33]-[39], in this paper, we assume no reflection loss at each IRS element for the sake of simplicity. However, the proposed algorithm is readily applicable to the case having a reflection loss at each IRS element by incorporating it in the system model.…”

mentioning

confidence: 99%

QoS-Constrained Energy-Efficient Beamforming and Jamming With Intelligent Reflecting Surface for Secure Multi-User Downlink

Kawai

Sugiura

2022

IEEE Trans. on Green Commun. Netw.

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“…Iterative optimizations were proposed to solve the optimization problems, and numerical results were shown to demonstrate the superiority of the proposed methods. The work in [26][27][28] considered the IRS-assisted SWIPT sys-tems in the MISO channels with external eavesdropper(s) assuming a different number of energy-harvesting receivers, eavesdroppers, or IRSs, respectively. Different methods were proposed to solve the secrecy rate maximization problems.…”

Section: Introductionmentioning

confidence: 99%

Optimal Beamforming for IRS-Assisted SWIPT System with an Energy-Harvesting Eavesdropper

Deng

Pan

2021

Electronics

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In this paper, we study a simultaneous wireless information and power transfer (SWIPT) system aided by the intelligent reflecting surface (IRS) technology, where an AP transmits confidential information to the legitimate information receiver (IR) in the presence of an energy harvesting (EH) receiver that could be a potential eavesdropper. We aim to maximize the secrecy rate at the legitimate IR by jointly optimizing the information beamforming vector and the energy transfer beamforming vector at the access point (AP), and the phase shift matrix at the IRS, subject to the minimum harvested power required by the EH receiver. The semi-definite relaxation (SDR) approach and the alternating optimization (AO) method are proposed to convert the original non-convex optimization problem to a series of semi-definite programs (SDPs), which are solved iteratively. Numerical results show that the achievable secrecy rate of the proposed IRS-assisted SWIPT system is higher than that of the SWIPT system without the assistance of the IRS.

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A Comprehensive Review on Beamforming Optimization Techniques for IRS assisted Energy Harvesting

Vishwakarma,

Bhattacharjee,

Dhar

et al. 2024

Arch Computat Methods Eng

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Artificial Noise-Aided Secure SWIPT Communication Systems Using Intelligent Reflecting Surface

Cited by 5 publications

References 12 publications

QoS-Constrained Energy-Efficient Beamforming and Jamming With Intelligent Reflecting Surface for Secure Multi-User Downlink

QoS-Constrained Energy-Efficient Beamforming and Jamming With Intelligent Reflecting Surface for Secure Multi-User Downlink

Optimal Beamforming for IRS-Assisted SWIPT System with an Energy-Harvesting Eavesdropper

A Comprehensive Review on Beamforming Optimization Techniques for IRS assisted Energy Harvesting

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