Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

IEEE Transactions on Green Communications and Networking

Secrecy Performance Optimization of SWIPT Wireless Networks in Partial Secrecy Regime

Shilpa Thakur, Satyajit Thakor

Published Sep 19, 2024• 2 citations
Publisher

Abstract

This work considers a single-input-single-output (SISO) simultaneous wireless information and power transfer (SWIPT) system, which comprises a single-antenna transmitter named Alice, one single-antenna legitimate receiver named Bob, and$M(M\gt 1)$single-antenna energy receivers (ERs). This paper examines the secrecy performance SISO SWIPT network in the presence of malevolent ERs in the partial secrecy regime that is based on the notion of practical equivocation and derives the closed-form expression for the generalized secrecy outage probability (GSOP), average fractional equivocation (AFE), and average information leakage rate (AILR). Moreover, a performance metric, referred to as the amount of confusion level (ACL), which measures the degree of confusion level at ERs is also analyzed for the proposed SWIPT networks. The optimal values of the secrecy rate and Alice’s transmission rate which are subject to throughput constraints are calculated in order to minimize the GSOP, maximize the AFE, and minimize the AILR. Finally, the optimal value of the power spitting factor is calculated.

DOI
10.1109/tgcn.2024.3464241

Related papers

On Secrecy Performance of MISO SWIPT Systems With TAS and Imperfect CSI

Gaofeng Pan, Hongjiang Lei, Yansha Deng +4 more

In this paper, a multiple-input single-output (MISO) simultaneous wireless information and power transfer (SWIPT) system, including one base station (BS) equipped with multiple antennas, one desired single-antenna information receiver (IR), and N (N > 1) single-antenna energy-harvesting receivers (ERs) is considered. Assuming that the information signal to the desired IR may be eavesdropped by ERs if ERs are malicious, we investigate the secrecy performance of the target MISO SWIPT system when imperfect channel state information (CSI) is available and adopted for transmit antenna selection at the BS. Considering that each eavesdropping link experiences independent but not necessarily identically distributed Rayleigh fading, the closed-form expressions for the exact and the asymptotic secrecy outage probability, and the average secrecy capacity are derived and verified by simulations. Furthermore, the optimal power splitting factor is derived for each ER to realize the tradeoff between the energy harvesting and the information eavesdropping. Our results reveal the impact of the imperfect CSI on the secrecy performance of MISO SWIPT systems in the presence of multiple wiretap channels.

IEEE Transactions on Communications•May 27, 2016•136 citations

On secrecy outage of MISO SWIPT systems in the presence of imperfect CSI

Gaofeng Pan, Hongjiang Lei, Yansha Deng +3 more

In this work, a multiple-input single-output (MISO) simultaneous wireless information and power transfer (SWIPT) system including one base station (BS) equipped with multiple antennas, one desired single-antenna information receiver (IR) and N (N > 1) single-antenna energy-harvesting receivers (ERs) is considered. By considering that the information signal of the desired IR may be eavesdropped by ERs if ERs are malicious, we investigate the secrecy performance of the target MISO SWIPT system when imperfect channel state information (CSI) is available and adopted for transmit antenna selection at the BS. Considering that each eavesdropping link experiences independent not necessarily identically distributed Rayleigh fading, the closed-form expressions for the exact and the asymptotic secrecy outage probability are derived and verified by simulation results.

European Signal Processing Conference (EUSIPCO)•Aug 1, 2016•30 citations

Optimal Target Secrecy Rate and Power Allocation Policy for a SWIPT System Over a Fading Wiretap Channel

Hongyan Yu, Songtao Guo, Yuanyuan Yang +1 more

The simultaneous wireless information and power transfer (SWIPT) technique is regarded as a promising approach to enhance performance of wireless networks with limited energy supply. However, due to the broadcast nature of wireless radio, the energy receiver may act as a potential eavesdropper to eavesdrop the information sent to the information receiver. To address this issue, in this paper, we propose an optimization framework of the target secrecy rate and the power allocation ratio based on the secrecy outage probability and the effective secrecy throughput in the SWIPT system over fading wiretap channel. Moreover, we derive the closed-form expression of the secrecy outage probability and the effective secrecy throughput for two secrecy transmission modes. Furthermore, we formulate the effective secrecy throughput maximization problem under the reliability constraint in the on-off and adaptive transmission modes and provide the closed-form optimal solutions of the power allocation ratio and the target secrecy rate. Finally, we provide numerical results that give an insight into the effect of various system parameters on the secrecy outage probability and the effective secrecy throughput, such as the target secrecy rate, the power allocation ratio, and average gains of the main channel and the eavesdropper channel.

IEEE Systems Journal•Apr 19, 2017•19 citations

Secrecy Performance of SWIPT Cognitive Radio Networks with Eavesdropper's Decoding Capability

Soleha Kousar, Ajay Singh

The concept of secrecy outage probability is a fundamental aspect used to study the performance of secrecy in wireless communication networks. While this metric constitutes the key element of secrecy performance evaluation, a more advanced approach involves scrutinizing the eavesdropper's capacity to decode the information. The issue of secrecy becomes critical in our proposed system model for cognitive radio network (CRN) featuring simultaneous wireless information and power transfer (SWIPT). In this context, security concerns arise related to spectrum sharing in CRNs, with the energy harvester in SWIPT potentially acting as an eavesdropper. We conduct an in-depth analysis using the concept of fractional equivocation to assess the severity of eavesdropper's decodability of the information. The chosen secrecy metric offers a more comprehensive understanding of secrecy in SWIPT-CRN, facilitating the design of secure communication systems with diverse perspectives on secrecy measurement. We derive a closed-form analytical expression for the exact generalized secrecy outage probability (GSOP) of the network. This expression conveys the GSOP's dependence on system parameters associated with the eavesdropper's decoding capability, which we illustrate through numerical analysis. Asymptotic analysis is performed to gain better insights into the system.

National Conference on Communications•Feb 28, 2024•0 citations

Probabilistically Robust SWIPT for Secrecy MISOME Systems

Muhammad R. A. Khandaker, Kai‐Kit Wong, Yangyang Zhang +1 more

This paper considers simultaneous wireless information and power transfer in a multiple-input single-output downlink system consisting of one multi-antenna transmitter, one single-antenna information receiver, multiple multi-antenna eavesdroppers (Eves), and multiple single-antenna energy-harvesting receivers (ERs). The main objective is to keep the probability of the legitimate user's achievable secrecy rate outage as well as the ERs' harvested energy outage caused by channel state information uncertainties below some prescribed thresholds. As is well known, the secrecy rate outage constraints present a significant analytical and computational challenge. Incorporating the energy harvesting outage constraints only intensifies that challenge. In this paper, we address this challenging issue using convex restriction approaches which are then proved to yield rank-one optimal beamforming solutions. Numerical results reveal the effectiveness of the proposed schemes.

arXiv:1608.08576•IEEE Transactions on Information Forensics and Security•Sep 20, 2016•61 citations

Secrecy Wireless Information and Power Transfer in Fading Wiretap Channel

Hong Xing, Liang Liu, Rui Zhang

Simultaneous wireless information and power transfer (SWIPT) has recently drawn significant interest for its dual use of radio signals to provide wireless data and energy access at the same time. However, a challenging secrecy communication issue arises as the messages sent to the information receivers (IRs) may be eavesdropped upon by energy receivers (ERs), which are presumed to harvest energy only from received signals. To tackle this problem, we propose in this paper an artificial-noise (AN)-aided transmission scheme to facilitate the secrecy information transmission to IRs and, yet, meet the energy harvesting requirement for ERs, under the assumption that the AN can be canceled at IRs but not at ERs. Specifically, the proposed scheme splits the transmit power into two parts: to send the confidential message to the IR and an AN to interfere with the ER, respectively. Under a simplified three-node wiretap channel setup, the transmit power allocations and power splitting ratios over fading channels are jointly optimized to minimize the outage probability for delay-limited secrecy information transmission or to maximize the average rate for no-delay-limited secrecy information transmission, subject to a combination of average and peak power constraints (APC and PPC) at the transmitter (Tx) and an average energy harvesting constraint at the ER. Both the secrecy outage probability minimization and average rate maximization problems are shown to be nonconvex, and for each, we propose the optimal solution based on the dual decomposition and the suboptimal solution based on the alternating optimization. Furthermore, two benchmark schemes are introduced for comparison where the AN is not used at the Tx and where the AN is used but cannot be canceled by the IR, respectively. Finally, the performances of proposed schemes are evaluated by simulations in terms of various tradeoffs for wireless (secrecy) information versus energy transmissions.

arXiv:1408.1987•IEEE Transactions on Vehicular Technology•Jan 22, 2015•188 citations
This work considers a single-input-single-output (SISO) simultaneous wireless information and power transfer (SWIPT) system, which comprises a single-antenna transmitter named Alice, one single-antenna legitimate receiver named Bob, andM(M>1)M(M\gt 1)M(M>1)single-antenna energy receivers (ERs). This paper examines the secrecy performance SISO SWIPT network in the presence of malevolent ERs in the partial secrecy regime that is based on the notion of practical equivocation and derives the closed-form expression for the generalized secrecy outage probability (GSOP), average fractional equivocation (AFE), and average information leakage rate (AILR). Moreover, a performance metric, referred to as the amount of confusion level (ACL), which measures the degree of confusion level at ERs is also analyzed for the proposed SWIPT networks. The optimal values of the secrecy rate and Alice’s transmission rate which are subject to throughput constraints are calculated in order to minimize the GSOP, maximize the AFE, and minimize the AILR. Finally, the optimal value of the power spitting factor is calculated.
In this paper, a multiple-input single-output (MISO) simultaneous wireless information and power transfer (SWIPT) system, including one base station (BS) equipped with multiple antennas, one desired single-antenna information receiver (IR), and N (N > 1) single-antenna energy-harvesting receivers (ERs) is considered. Assuming that the information signal to the desired IR may be eavesdropped by ERs if ERs are malicious, we investigate the secrecy performance of the target MISO SWIPT system when imperfect channel state information (CSI) is available and adopted for transmit antenna selection at the BS. Considering that each eavesdropping link experiences independent but not necessarily identically distributed Rayleigh fading, the closed-form expressions for the exact and the asymptotic secrecy outage probability, and the average secrecy capacity are derived and verified by simulations. Furthermore, the optimal power splitting factor is derived for each ER to realize the tradeoff between the energy harvesting and the information eavesdropping. Our results reveal the impact of the imperfect CSI on the secrecy performance of MISO SWIPT systems in the presence of multiple wiretap channels.
In this work, a multiple-input single-output (MISO) simultaneous wireless information and power transfer (SWIPT) system including one base station (BS) equipped with multiple antennas, one desired single-antenna information receiver (IR) and N (N > 1) single-antenna energy-harvesting receivers (ERs) is considered. By considering that the information signal of the desired IR may be eavesdropped by ERs if ERs are malicious, we investigate the secrecy performance of the target MISO SWIPT system when imperfect channel state information (CSI) is available and adopted for transmit antenna selection at the BS. Considering that each eavesdropping link experiences independent not necessarily identically distributed Rayleigh fading, the closed-form expressions for the exact and the asymptotic secrecy outage probability are derived and verified by simulation results.
The simultaneous wireless information and power transfer (SWIPT) technique is regarded as a promising approach to enhance performance of wireless networks with limited energy supply. However, due to the broadcast nature of wireless radio, the energy receiver may act as a potential eavesdropper to eavesdrop the information sent to the information receiver. To address this issue, in this paper, we propose an optimization framework of the target secrecy rate and the power allocation ratio based on the secrecy outage probability and the effective secrecy throughput in the SWIPT system over fading wiretap channel. Moreover, we derive the closed-form expression of the secrecy outage probability and the effective secrecy throughput for two secrecy transmission modes. Furthermore, we formulate the effective secrecy throughput maximization problem under the reliability constraint in the on-off and adaptive transmission modes and provide the closed-form optimal solutions of the power allocation ratio and the target secrecy rate. Finally, we provide numerical results that give an insight into the effect of various system parameters on the secrecy outage probability and the effective secrecy throughput, such as the target secrecy rate, the power allocation ratio, and average gains of the main channel and the eavesdropper channel.
The concept of secrecy outage probability is a fundamental aspect used to study the performance of secrecy in wireless communication networks. While this metric constitutes the key element of secrecy performance evaluation, a more advanced approach involves scrutinizing the eavesdropper's capacity to decode the information. The issue of secrecy becomes critical in our proposed system model for cognitive radio network (CRN) featuring simultaneous wireless information and power transfer (SWIPT). In this context, security concerns arise related to spectrum sharing in CRNs, with the energy harvester in SWIPT potentially acting as an eavesdropper. We conduct an in-depth analysis using the concept of fractional equivocation to assess the severity of eavesdropper's decodability of the information. The chosen secrecy metric offers a more comprehensive understanding of secrecy in SWIPT-CRN, facilitating the design of secure communication systems with diverse perspectives on secrecy measurement. We derive a closed-form analytical expression for the exact generalized secrecy outage probability (GSOP) of the network. This expression conveys the GSOP's dependence on system parameters associated with the eavesdropper's decoding capability, which we illustrate through numerical analysis. Asymptotic analysis is performed to gain better insights into the system.
This paper considers simultaneous wireless information and power transfer in a multiple-input single-output downlink system consisting of one multi-antenna transmitter, one single-antenna information receiver, multiple multi-antenna eavesdroppers (Eves), and multiple single-antenna energy-harvesting receivers (ERs). The main objective is to keep the probability of the legitimate user's achievable secrecy rate outage as well as the ERs' harvested energy outage caused by channel state information uncertainties below some prescribed thresholds. As is well known, the secrecy rate outage constraints present a significant analytical and computational challenge. Incorporating the energy harvesting outage constraints only intensifies that challenge. In this paper, we address this challenging issue using convex restriction approaches which are then proved to yield rank-one optimal beamforming solutions. Numerical results reveal the effectiveness of the proposed schemes.
Simultaneous wireless information and power transfer (SWIPT) has recently drawn significant interest for its dual use of radio signals to provide wireless data and energy access at the same time. However, a challenging secrecy communication issue arises as the messages sent to the information receivers (IRs) may be eavesdropped upon by energy receivers (ERs), which are presumed to harvest energy only from received signals. To tackle this problem, we propose in this paper an artificial-noise (AN)-aided transmission scheme to facilitate the secrecy information transmission to IRs and, yet, meet the energy harvesting requirement for ERs, under the assumption that the AN can be canceled at IRs but not at ERs. Specifically, the proposed scheme splits the transmit power into two parts: to send the confidential message to the IR and an AN to interfere with the ER, respectively. Under a simplified three-node wiretap channel setup, the transmit power allocations and power splitting ratios over fading channels are jointly optimized to minimize the outage probability for delay-limited secrecy information transmission or to maximize the average rate for no-delay-limited secrecy information transmission, subject to a combination of average and peak power constraints (APC and PPC) at the transmitter (Tx) and an average energy harvesting constraint at the ER. Both the secrecy outage probability minimization and average rate maximization problems are shown to be nonconvex, and for each, we propose the optimal solution based on the dual decomposition and the suboptimal solution based on the alternating optimization. Furthermore, two benchmark schemes are introduced for comparison where the AN is not used at the Tx and where the AN is used but cannot be canceled by the IR, respectively. Finally, the performances of proposed schemes are evaluated by simulations in terms of various tradeoffs for wireless (secrecy) information versus energy transmissions.