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

Wireless Networks

Secure communication with energy harvesting multiple half-duplex DF relays assisted with jamming

Shashibhushan Sharma, Sanjay Dhar Roy, Sumit Kundu

Published Oct 22, 2018• 8 citations
Publisher
DOI
10.1007/s11276-018-1859-0

Related papers

Joint Relay Selection and Destination Assisted Cooperative Jamming with Power Allocation for Secure DF Relay Network

Shaobo Jia, Jiayan Zhang, Honglin Zhao +1 more

International Journal of Wireless Information Networks•Jul 9, 2019•2 citations

Secrecy capacity in two-way energy harvesting relay networks with a friendly jammer

Maymoona Hayajneh, Thomas Aaron Gulliver

Wireless Networks•Aug 14, 2021•4 citations

Physical Layer Secrecy by Power Splitting and Jamming in Cooperative Multiple Relay Based on Energy Harvesting in Full-Duplex Network

Nabila Sehito, Shouyi Yang, Esraa Mousa Ali +7 more

In this article, we investigated the secrecy performance of a three-hop relay network system with Power Splitting (PS) and Energy Harvesting (EH). In the presence of one eavesdropper, a signal is transferred from source to destination with the help of a relay. The source signal transmits in full-duplex (FD) mood, jamming the relay transfer signals to the destination. The relay and source employ Time Switching (TS) and Energy Harvesting (EH) techniques to obtain the power from the power beacon. In this study, we compared the Secrecy Rate of two Cooperative Schemes, Amplify and Forward (AF) and Decode and Forward (DF), for both designed systems with the established EH and PS system. The Secrecy Rate was improved by 50.5% in the AF scheme and by 44.2% in the DF scheme between the relay and eavesdropper at 40 m apart for the proposed system in EH and PS. This simulation was performed using the Monto Carlo method in MATLAB.

Electronics•Dec 23, 2021•4 citations

Two way secure communication with two half-duplex DF relay

Shashibhushan Sharma, Sanjay Dhar Roy, Sumit Kundu

This paper shows the secrecy performance of a network in which secure two-way communication is possible via two half duplex decode and forward (DF) relays with an eavesdropper (EAV) trying to decode the message. In the absence of direct link from source one (S1) to source two (S2), two-way communication is established in two time phases with the help of two half duplex DF relays, first one is in broadcast phase and second one is in relaying phase and two DF relays are named as DF relay one (DFR1) and DF relay two (DFR2). Each of the two relays is assisted with two directive antennas, one is receiving antenna and the other is transmitting antenna directed towards respective transmitting and receiving nodes. Thus, the EAV only receives the information from both sources only and does not receive the forwarded information signal of the relays. Matlab based simulation results, in terms of secrecy outage probability (SOP), have been shown to validate the results.

IEEE Region 10 Conference (TENCON)•Nov 1, 2017•5 citations

On the performance of physical layer security in virtual full-duplex non-orthogonal multiple access system

Weidong Guo, Yuxi Liu

Abstract This paper investigates physical layer security analysis of cooperative non-orthogonal multiple access (NOMA) communication system. A virtual full-duplex (VFD) relaying scheme with an untrusted amplify-and-forward (AF) half-duplex (HD) relay and a trusted decode-and-forward (DF) HD relay is used in this system to improve the spectral efficiency. In order to prevent the untrusted relay from eavesdropping, a simple and practical cooperative jamming scheme is designed to confuse the untrusted relay. The exact expressions of effective secrecy throughput (EST) for NOMA users and approximate expression of EST for non-NOMA user are derived. All theoretical results are validated by numerical simulations which demonstrate that the proposed VFD-NOMA scheme is superior to existing HD-NOMA scheme in cooperative system and jamming plays an important role for obtaining acceptable EST. In addition, simulation results shows that the best secrecy performance highly depends on the system parameters such as transmit powers and jamming signal power.

EURASIP Journal on Wireless Communications and Networking•Jun 12, 2021•2 citations

Secure communication in untrusted relay selection networks with wireless energy harvesting

Van Phu Tuan, Hyung Yun Kong

Wireless Networks•Oct 31, 2017•5 citations
In this article, we investigated the secrecy performance of a three-hop relay network system with Power Splitting (PS) and Energy Harvesting (EH). In the presence of one eavesdropper, a signal is transferred from source to destination with the help of a relay. The source signal transmits in full-duplex (FD) mood, jamming the relay transfer signals to the destination. The relay and source employ Time Switching (TS) and Energy Harvesting (EH) techniques to obtain the power from the power beacon. In this study, we compared the Secrecy Rate of two Cooperative Schemes, Amplify and Forward (AF) and Decode and Forward (DF), for both designed systems with the established EH and PS system. The Secrecy Rate was improved by 50.5% in the AF scheme and by 44.2% in the DF scheme between the relay and eavesdropper at 40 m apart for the proposed system in EH and PS. This simulation was performed using the Monto Carlo method in MATLAB.
This paper shows the secrecy performance of a network in which secure two-way communication is possible via two half duplex decode and forward (DF) relays with an eavesdropper (EAV) trying to decode the message. In the absence of direct link from source one (S1) to source two (S2), two-way communication is established in two time phases with the help of two half duplex DF relays, first one is in broadcast phase and second one is in relaying phase and two DF relays are named as DF relay one (DFR1) and DF relay two (DFR2). Each of the two relays is assisted with two directive antennas, one is receiving antenna and the other is transmitting antenna directed towards respective transmitting and receiving nodes. Thus, the EAV only receives the information from both sources only and does not receive the forwarded information signal of the relays. Matlab based simulation results, in terms of secrecy outage probability (SOP), have been shown to validate the results.
Abstract This paper investigates physical layer security analysis of cooperative non-orthogonal multiple access (NOMA) communication system. A virtual full-duplex (VFD) relaying scheme with an untrusted amplify-and-forward (AF) half-duplex (HD) relay and a trusted decode-and-forward (DF) HD relay is used in this system to improve the spectral efficiency. In order to prevent the untrusted relay from eavesdropping, a simple and practical cooperative jamming scheme is designed to confuse the untrusted relay. The exact expressions of effective secrecy throughput (EST) for NOMA users and approximate expression of EST for non-NOMA user are derived. All theoretical results are validated by numerical simulations which demonstrate that the proposed VFD-NOMA scheme is superior to existing HD-NOMA scheme in cooperative system and jamming plays an important role for obtaining acceptable EST. In addition, simulation results shows that the best secrecy performance highly depends on the system parameters such as transmit powers and jamming signal power.