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

International Journal of Electronics and Telecommunications

On Secrecy Performance for Energy-Harvesting Multi-Antenna Relaying Networks with a Dual-Use Source

Jiliang Zhang, Gaofeng Pan, Yiyuan Xie

Published Mar 30, 2018• 0 citations
Publisher

Abstract

This paper studies the secrecy performance of an energy-harvesting relaying system in the presence of a dualuse source node and an eavesdropper.Specifically, the source has dual roles in the dual-hop communication: 1) to transmit confidential information in the first hop; 2) to generate jamming signal to interfere the eavesdropper in the second hop.Moreover, the multi-antenna relay deploys a power-splitting harvesting scheme to coordinate the information receiving and energy harvesting, and adopts maximal ratio combining technique to process the multiple copies of signals.Considering decode-andforward protocol and transmit antenna selection scheme, we derive an analytical expression for secrecy outage probability, and perform Monte Carlo simulation to validate the analysis.Analytical results show that the SOP performance with the dualuse source node can be effectively improved when the relaydestination channel does not have absolute advantage over the relay-eavesdropper channel.

DOI
10.24425/118143

Related papers

Secrecy Outage of an Energy Harvesting Multi-relay Network with Multiple-antenna

Shashibhushan Sharma, Sanjay Dhar Roy, Sumit Kundu

Abstract Secrecy performance of a cooperative communication network is analyzed in which source transmits information to a destination via multiple relays, assisted with multiple antennas, where an eavesdropper is able to eavesdrop the information signal from relay only. The direct link does not exist between source and destination due to deep fading and shadowing effect and transmission of a signal from source to destination is completed in two phases; first is the broadcasting phase and other is the relaying phase. Each relay follows decode and forward protocol and receives the information signal with multiple antennas. A selected relay harvests energy from received multiple signals through multiple antennas. Both information and jamming signals are transmitted by the selected antenna of a selected relay. It has been seen that a selected relay harvests energy 0.3706 joule with an array of 5 antennas when the source transmits the information signal with 5 dBW power. We have also observed that the performance increased by 99.24% in case of an array four antennas system with respect to an array of two antennas system when secrecy threshold is 1 bit/s/Hz . Secrecy performance is measured in terms of secrecy outage probability (SOP). A closed-form expression of the SOP is derived to analyze the secrecy performance which is verified by the simulation results.

Wireless Personal Communications•Mar 23, 2023•0 citations

Secure communication via an energy-harvesting untrusted relay in the presence of an eavesdropper

Van Phu Tuan, Hyung Yun Kong

This article studies a secure communication of a simultaneous wireless information and power transfer system in which an energy-constrained untrusted relay, which harvests energy from the wireless signals, helps the communication between the source and destination and is able to decode the source’s confidential signal. Additionally, the source’s confidential signal is also overheard by a passive eavesdropper. To create positive secrecy capacity, a destination-assisted jamming signal that is completely cancelled at the destination is adopted. Moreover, the jamming signal is also exploited as an additional energy source. To evaluate the secrecy performance, analytical expressions for the secrecy outage probability (SOP) and the average secrecy capacity are derived. Moreover, a high-power approximation for the SOP is presented. The accuracy of the analytical results is verified by Monte Carlo simulations. Numerical results provide valuable insights into the effect of various system parameters, such as the energy-harvesting efficiency, secrecy rate threshold, power-splitting ratio, transmit powers, and locations of the relay and eavesdropper, on the secrecy performance.

International Journal of Electronics•Jul 17, 2017•1 citation

Secrecy Analysis of Wireless-Powered Multi-Antenna Relaying System With Nonlinear Energy Harvesters and Imperfect CSI

Jiliang Zhang, Gaofeng Pan, Yiyuan Xie

In this paper, the secrecy performance of a wireless-powered multi-antenna relaying system, which consists of a source$\boldsymbol {(S)}$, a destination$\boldsymbol {(D)}$,$\boldsymbol {N (N>1)}$relays (Rs), a power beacon$\boldsymbol {(B)}$, and an eavesdropper$\boldsymbol {(E)}$, is studied in the presence of imperfect channel state information at Rs. Both S and Rs are assumed to be with nonlinear energy harvesters, and harvest energy from radio-frequency signals from B through a time-switching harvesting scheme. Assuming Rs deploy decode-and-forward scheme, a general$\boldsymbol {K}$th best relay in terms of instantaneous secrecy capacity for S-R-D link is selected for information transmission. An analytical expression for secrecy outage probability (SOP), validated via Monte Carlo simulation, is derived when all channels experience independent Rayleigh fading. Numerical results show that a higher correlation coefficient between the estimated and real channel values leads to better SOP performance when the ratio of the channel gains of R-D and R-E links is in the high region for the first hop or in the low-to-medium region for the second hop. Furthermore, there exists a special value of the saturation threshold of the energy harvester at S or R, and SOP performance cannot be improved when the saturation threshold is beyond that value.

IEEE Transactions on Green Communications and Networking•Dec 19, 2017•62 citations

Secure communication for wireless energy harvesting decode and forward relay in presence of an eavesdropper

Gowthamkrishnan Cherukuri, Shashibhushan Sharma, Srinivas Nallagonda +1 more

In this paper, we analyze the secrecy performance of a dual hop communication system with decode and forward relay (DFR) in the presence of an eavesdropper (EAV), which operates in full duplex mode. The secrecy capacity of the system is enhanced by using a Hybrid scheme of combination of time switching-based relaying (TSR) and power splitting-based relaying (PSR). A novel scheme of assisting the confidential information transmission by simultaneous transmission of jamming signal is presented. Both relay and EAV harvest energy from RF signals by using the Hybrid scheme. The performance of the scheme is evaluated in terms of secrecy outage probability (SOP) under several conditions of network parameters and SNRs of inter node channels. We also compare the results of PSR scheme alone in terms of SOP with Hybrid scheme under our proposed jamming model. MATLAB based simulation of our scheme demonstrates significant reduction of SOP.

International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET)•Mar 1, 2017•0 citations

Secrecy Performance of a Cooperative Network with Battery-Assisted Energy Harvesting Nodes

Amit R. Patel, Shankar Prakriya

This paper analyzes the secrecy performance of a two-hop cooperative network with battery-assisted energy harvesting (EH) nodes. Both the source and the relay employ jamming to improve secrecy. A power beacon (PB) supplies energy to the nodes using the harvest-store-use (HSU) architecture. To counter the variation in harvested energy, some battery energy is added to it. Both nodes apportion this sum energy between the information and jamming symbols. We consider the maximal ratio combining (MRC) of the direct and relayed signals at the destination and the eavesdropper. We assume channel state information (CSI) of destination and eavesdropper links are not available at both the source and relay. We derive an approximate expression for secrecy outage probability assuming the selective decode-and-forward (SDF) protocol. We then derive the high-SNR approximation to it. We demonstrate improvement in secrecy performance with an increase in the transmit power of PB. Also, there exists an optimal power apportioning parameter different from equal power allocation that minimizes secrecy outage both at the source and at the relay. Extensive simulations corroborate the derived analytical results.

IEEE Vehicular Technology Conference•Jun 24, 2024•1 citation

Physical layer security in two-hop cooperative networks based on multi-node SWIPT

Dandan Guo, Baogang Li, Yabo Lv +1 more

In this paper, we consider a multi-node-assisted two-hop cooperative network, where an energy constrained source (S) aims to establish secure communications with a legitimate user in the presence of an eavesdropper. The cooperative nodes simultaneously assist the transmission from base station to legitimate user. Each cooperative node applies power splitting protocol to coordinate the received signal energy for information decoding and energy harvesting. The power splitting ratios at multi-node are formulated based on decode-and-forward (DF) relaying protocols. Depending on the available channel state information (CSI) at the source, we propose two different jamming schemes for secrecy performance enhancement. An optimal node is selected as a jammer to interfere the eavesdropper or a relay to forward the information to legitimate user. we evaluate the network performance based on secrecy outage probability (SOP). In addition, simple and accurate approximations are obtained at different transmission speed thresholds. Furthermore, numerical results reveal that there exist unique splitting ratios and harvesting efficiency that minimize the SOP.

IEEE International Conference on Anti-counterfeiting, Security, and Identification (ASID)•Oct 1, 2017•0 citations
This paper studies the secrecy performance of an energy-harvesting relaying system in the presence of a dualuse source node and an eavesdropper.Specifically, the source has dual roles in the dual-hop communication: 1) to transmit confidential information in the first hop; 2) to generate jamming signal to interfere the eavesdropper in the second hop.Moreover, the multi-antenna relay deploys a power-splitting harvesting scheme to coordinate the information receiving and energy harvesting, and adopts maximal ratio combining technique to process the multiple copies of signals.Considering decode-andforward protocol and transmit antenna selection scheme, we derive an analytical expression for secrecy outage probability, and perform Monte Carlo simulation to validate the analysis.Analytical results show that the SOP performance with the dualuse source node can be effectively improved when the relaydestination channel does not have absolute advantage over the relay-eavesdropper channel.
Abstract Secrecy performance of a cooperative communication network is analyzed in which source transmits information to a destination via multiple relays, assisted with multiple antennas, where an eavesdropper is able to eavesdrop the information signal from relay only. The direct link does not exist between source and destination due to deep fading and shadowing effect and transmission of a signal from source to destination is completed in two phases; first is the broadcasting phase and other is the relaying phase. Each relay follows decode and forward protocol and receives the information signal with multiple antennas. A selected relay harvests energy from received multiple signals through multiple antennas. Both information and jamming signals are transmitted by the selected antenna of a selected relay. It has been seen that a selected relay harvests energy 0.3706 joule with an array of 5 antennas when the source transmits the information signal with 5 dBW power. We have also observed that the performance increased by 99.24% in case of an array four antennas system with respect to an array of two antennas system when secrecy threshold is 1 bit/s/Hz . Secrecy performance is measured in terms of secrecy outage probability (SOP). A closed-form expression of the SOP is derived to analyze the secrecy performance which is verified by the simulation results.
This article studies a secure communication of a simultaneous wireless information and power transfer system in which an energy-constrained untrusted relay, which harvests energy from the wireless signals, helps the communication between the source and destination and is able to decode the source’s confidential signal. Additionally, the source’s confidential signal is also overheard by a passive eavesdropper. To create positive secrecy capacity, a destination-assisted jamming signal that is completely cancelled at the destination is adopted. Moreover, the jamming signal is also exploited as an additional energy source. To evaluate the secrecy performance, analytical expressions for the secrecy outage probability (SOP) and the average secrecy capacity are derived. Moreover, a high-power approximation for the SOP is presented. The accuracy of the analytical results is verified by Monte Carlo simulations. Numerical results provide valuable insights into the effect of various system parameters, such as the energy-harvesting efficiency, secrecy rate threshold, power-splitting ratio, transmit powers, and locations of the relay and eavesdropper, on the secrecy performance.
In this paper, the secrecy performance of a wireless-powered multi-antenna relaying system, which consists of a source(S)\boldsymbol {(S)}(S), a destination(D)\boldsymbol {(D)}(D),N(N>1)\boldsymbol {N (N>1)}N(N>1)relays (Rs), a power beacon(B)\boldsymbol {(B)}(B), and an eavesdropper(E)\boldsymbol {(E)}(E), is studied in the presence of imperfect channel state information at Rs. Both S and Rs are assumed to be with nonlinear energy harvesters, and harvest energy from radio-frequency signals from B through a time-switching harvesting scheme. Assuming Rs deploy decode-and-forward scheme, a generalK\boldsymbol {K}Kth best relay in terms of instantaneous secrecy capacity for S-R-D link is selected for information transmission. An analytical expression for secrecy outage probability (SOP), validated via Monte Carlo simulation, is derived when all channels experience independent Rayleigh fading. Numerical results show that a higher correlation coefficient between the estimated and real channel values leads to better SOP performance when the ratio of the channel gains of R-D and R-E links is in the high region for the first hop or in the low-to-medium region for the second hop. Furthermore, there exists a special value of the saturation threshold of the energy harvester at S or R, and SOP performance cannot be improved when the saturation threshold is beyond that value.
In this paper, we analyze the secrecy performance of a dual hop communication system with decode and forward relay (DFR) in the presence of an eavesdropper (EAV), which operates in full duplex mode. The secrecy capacity of the system is enhanced by using a Hybrid scheme of combination of time switching-based relaying (TSR) and power splitting-based relaying (PSR). A novel scheme of assisting the confidential information transmission by simultaneous transmission of jamming signal is presented. Both relay and EAV harvest energy from RF signals by using the Hybrid scheme. The performance of the scheme is evaluated in terms of secrecy outage probability (SOP) under several conditions of network parameters and SNRs of inter node channels. We also compare the results of PSR scheme alone in terms of SOP with Hybrid scheme under our proposed jamming model. MATLAB based simulation of our scheme demonstrates significant reduction of SOP.
This paper analyzes the secrecy performance of a two-hop cooperative network with battery-assisted energy harvesting (EH) nodes. Both the source and the relay employ jamming to improve secrecy. A power beacon (PB) supplies energy to the nodes using the harvest-store-use (HSU) architecture. To counter the variation in harvested energy, some battery energy is added to it. Both nodes apportion this sum energy between the information and jamming symbols. We consider the maximal ratio combining (MRC) of the direct and relayed signals at the destination and the eavesdropper. We assume channel state information (CSI) of destination and eavesdropper links are not available at both the source and relay. We derive an approximate expression for secrecy outage probability assuming the selective decode-and-forward (SDF) protocol. We then derive the high-SNR approximation to it. We demonstrate improvement in secrecy performance with an increase in the transmit power of PB. Also, there exists an optimal power apportioning parameter different from equal power allocation that minimizes secrecy outage both at the source and at the relay. Extensive simulations corroborate the derived analytical results.
In this paper, we consider a multi-node-assisted two-hop cooperative network, where an energy constrained source (S) aims to establish secure communications with a legitimate user in the presence of an eavesdropper. The cooperative nodes simultaneously assist the transmission from base station to legitimate user. Each cooperative node applies power splitting protocol to coordinate the received signal energy for information decoding and energy harvesting. The power splitting ratios at multi-node are formulated based on decode-and-forward (DF) relaying protocols. Depending on the available channel state information (CSI) at the source, we propose two different jamming schemes for secrecy performance enhancement. An optimal node is selected as a jammer to interfere the eavesdropper or a relay to forward the information to legitimate user. we evaluate the network performance based on secrecy outage probability (SOP). In addition, simple and accurate approximations are obtained at different transmission speed thresholds. Furthermore, numerical results reveal that there exist unique splitting ratios and harvesting efficiency that minimize the SOP.