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 Wireless Antenna and Microwave Symposium (WAMS)

SOP Minimization in Cooperative Relay-Based NOMA Network with Control Jammer

V. Narasimha Nayak, D.B.S. Rohan, D. Kumar Reddy, P. Naga Sridhar, Kiran Kumar Gurrala

Published Feb 29, 2024• 1 citation
Publisher

Abstract

This paper presents a new control-jammer (CJ) strategy for improving the secrecy outage probability (SOP) in a non-orthogonal multiple access (NOMA) network with a decode-and-forward (DF) relay. The network configuration involves a source transmitting a composite signal to NOMA users with the assistance of a DF relay. In order to safeguard the users' confidential data from an eavesdropper (Eve), a jammer is deployed. The primary objective of the optimization problem is to minimize the SOP for the NOMA users in the presence of Eve. Under the CJ condition, this paper evaluates the network's physical layer security. Extensive analysis is conducted to compare the performance gap between CJ and other jamming conditions. Through comprehensive simulation results, this study showcases a substantial enhancement in secrecy performance achieved by the proposed CJ scheme at both users, demonstrating its effectiveness in improving the security of the DF relay aided NOMA network.

DOI
10.1109/wams59642.2024.10528169

Related papers

Secrecy at Physical Layer in NOMA with Cooperative Jamming

Shashibhushan Sharma, Sanjay Dhar Roy, Sumit Kundu

We have proposed and analyzed secrecy performance of a network architecture which contains a source, two destinations, a friendly jammer (FJ) and an eavesdropper (Eve). To jam the Eve in order to secure the confidential information of both users, the FJ sends a jamming signal while the source sends the combined information signal using non-orthogonal multiple access (NOMA) technique to both the users. A known jamming is considered which is known by both the users. Both the users subtract the known jamming from the received signal and then decode the information signal as per the NOMA technique. We analyzed the physical layer security of the network in terms of the secrecy outage probability (SOP) where the two users have different target secrecy rates. A closed form expression of the SOP is developed. We have analyzed the SOP under the impact of several numerical parameters such as: source transmit signal to noise ratio (SNR), FJ transmit SNR, fraction of source transmit power, and different target secrecy rates. For a fixed transmit SNR of the FJ, we obtain an optimal value of the source transmit SNR at which SOP is minimized. These analyzed results are also supported by the MATLAB based simulation results.

National Conference on Communications•Feb 1, 2020•20 citations

Improving Secrecy Rate in NOMA Network with Jamming Schmes

V. Narasimha Nayak, N. Pranathi, K. Veena Divya +1 more

This article explores the issue of physical layer security (PLS) through an analysis of a Non-Orthogonal Multiple Access (NOMA) network using multiple jamming strategies. In this network, a source transmits multiplexed signals to NOMA users when Eve is present. A jammer node adds interference signals to prevent Eve from wiretapping the secret information of the NOMA users. By deploying a new control-jammer (CJ) strategy to this network, it is possible to maximize secrecy rate at both NOMA users while working under a total power constraint. The main focus of the proposed work is on evaluating the PLS analysis of the network in terms of secrecy rate, with particular attention to the CJ condition. Additionally, the study measures the security performance difference between CJ and other jamming methods. Notably, the simulation findings confirm that CJ is effective in boosting the security of the NOMA network compared with other jamming strategies.

IEEE Wireless Antenna and Microwave Symposium (WAMS)•Feb 29, 2024•3 citations

Optimal power allocation‐based novel control jamming scheme for nonorthogonal multiple access enabled decode‐and‐forward relay network

V. Narasimha Nayak, Kiran Kumar Gurrala

Summary In this work, a new control jamming (CJ) scheme has been proposed for a cooperative nonorthogonal multiple access (NOMA) network with optimal power allocation factors by employing decode‐and‐forward (DF) relay. Maximization of secrecy rate at both NOMA users with the aid of CJ under total transmit power constraint is considered as an optimization problem. In this regard, invasive weed optimization (IWO) algorithm‐based approach is proposed to facilitate optimal power allocation for the considered network. In this analysis, performance metric secrecy rate is analyzed with CJ at both NOMA users by varying the location of eavesdropper with respect to the relay and jammer. In addition, the performance of fixed power allocation (FPA) and proposed power allocation (PPA) schemes is investigated with CJ and compared with jamming (J) and without jamming (WJ) conditions. Simulation result analysis specifies that secrecy performance is enhanced remarkably by CJ and PPA outperforms the FPA.

International Journal of Communication Systems•Apr 28, 2021•2 citations

Security at Physical Layer in NOMA Relaying Networks With Cooperative Jamming

Bingcai Chen, Rui Li, Qian Ning +3 more

In this letter, we consider a non-orthogonal multiple access (NOMA) network with a half-duplex (HD) decode-and-forward (DF) relay to improve physical layer security (PLS) of two users. Two legitimate users of U1 and U2 are far from the multi-antenna base station (BS). Thus, a relay with multi-antenna is used to enhance communication and obtain diversity gain. In the first stage, the BS transmits the superimposed signal to the relay via NOMA. Meanwhile, U1 generates the jamming signal to the eavesdropper (Eve). In the second stage, the relay forwards the signal to two users while the BS transmits the jamming signal to disrupt the eavesdropping. It is assumed that the Eve has strong eavesdropping ability. Thus, we need to introduce jamming to guarantee security. Furthermore, we use U1 instead of a full-duplex (FD) relay to send the jamming signal in the first stage to avoid self-interference. To measure the secrecy performance, a closed-form expression of secrecy outage probability (SOP) is derived for the two users. Simulation results are provided to verify the correctness of the proposed scheme.

IEEE Transactions on Vehicular Technology•Jan 21, 2022•56 citations

Power Allocation Assisted New Control Jamming Scheme For NOMA Enabled AF Relay Network

Narasimha Nayak Vankudoth, Kiran Kumar Gurrala

This paper presents a new control jamming (CJ) scheme for AF relay aided NOMA network with optimal power allocation. The network contains a source, which forwards the multiplexed signal to the NOMA users by employment of AF relay. The jammer node forwards the interference signal to secure the confidential information of users against the eavesdropper attack. Secrecy rate enhancement at the NOMA user with the aid of CJ under total power constraint is taken as an optimization problem. The optimal power allocation factors of considered network are investigated using Invasive-Weed-Optimization (IWO) algorithm. The physical layer security of the network is analyzed in terms of secrecy rate under CJ condition. Furthermore, the secure performance gap between fixed and proposed power allocation schemes are examined with CJ and compared with other jamming conditions. Finally, the simulation results demonstrate that the secrecy performance is enhanced remarkably by CJ and proposed-power-allocation outperforms the fixed-power-allocation.

IEEE India Conference•Dec 10, 2020•3 citations

Secrecy Analysis for NOMA networks With a Full-Duplex Jamming Relay

Dongdong Li, Yang Cao, Jie Tang +4 more

Non-orthogonal multiple access (NOMA) is an important technology for the forthcoming 5G and beyond. However, its privacy often suffers from adversarial eavesdropping, especially for the users with higher transmit power. In this paper, we propose a jamming-aided secure transmission scheme for cooperative NOMA networks with a full-duplex (FD) relay. In this scheme, two pairs of users perform secure transmission with the help of a decode-forward (DF) relay, which forwards information and generates artificial jamming to counteract eavesdropping. The precoding vectors are designed to zero-force the artificial jamming at legal receivers. Then, the channel statistics are calculated, based on which the expressions of secrecy outage probability (SOP) are derived. Simulation results show the accuracy of our analysis, and demonstrate that the proposed scheme can effectively reduce the SOP and improve the effective secrecy throughput via artificial jamming and FD relaying.

IEEE Wireless Communications and Networking Conference•Mar 29, 2021•4 citations
This paper presents a new control-jammer (CJ) strategy for improving the secrecy outage probability (SOP) in a non-orthogonal multiple access (NOMA) network with a decode-and-forward (DF) relay. The network configuration involves a source transmitting a composite signal to NOMA users with the assistance of a DF relay. In order to safeguard the users' confidential data from an eavesdropper (Eve), a jammer is deployed. The primary objective of the optimization problem is to minimize the SOP for the NOMA users in the presence of Eve. Under the CJ condition, this paper evaluates the network's physical layer security. Extensive analysis is conducted to compare the performance gap between CJ and other jamming conditions. Through comprehensive simulation results, this study showcases a substantial enhancement in secrecy performance achieved by the proposed CJ scheme at both users, demonstrating its effectiveness in improving the security of the DF relay aided NOMA network.
We have proposed and analyzed secrecy performance of a network architecture which contains a source, two destinations, a friendly jammer (FJ) and an eavesdropper (Eve). To jam the Eve in order to secure the confidential information of both users, the FJ sends a jamming signal while the source sends the combined information signal using non-orthogonal multiple access (NOMA) technique to both the users. A known jamming is considered which is known by both the users. Both the users subtract the known jamming from the received signal and then decode the information signal as per the NOMA technique. We analyzed the physical layer security of the network in terms of the secrecy outage probability (SOP) where the two users have different target secrecy rates. A closed form expression of the SOP is developed. We have analyzed the SOP under the impact of several numerical parameters such as: source transmit signal to noise ratio (SNR), FJ transmit SNR, fraction of source transmit power, and different target secrecy rates. For a fixed transmit SNR of the FJ, we obtain an optimal value of the source transmit SNR at which SOP is minimized. These analyzed results are also supported by the MATLAB based simulation results.
This article explores the issue of physical layer security (PLS) through an analysis of a Non-Orthogonal Multiple Access (NOMA) network using multiple jamming strategies. In this network, a source transmits multiplexed signals to NOMA users when Eve is present. A jammer node adds interference signals to prevent Eve from wiretapping the secret information of the NOMA users. By deploying a new control-jammer (CJ) strategy to this network, it is possible to maximize secrecy rate at both NOMA users while working under a total power constraint. The main focus of the proposed work is on evaluating the PLS analysis of the network in terms of secrecy rate, with particular attention to the CJ condition. Additionally, the study measures the security performance difference between CJ and other jamming methods. Notably, the simulation findings confirm that CJ is effective in boosting the security of the NOMA network compared with other jamming strategies.
Summary In this work, a new control jamming (CJ) scheme has been proposed for a cooperative nonorthogonal multiple access (NOMA) network with optimal power allocation factors by employing decode‐and‐forward (DF) relay. Maximization of secrecy rate at both NOMA users with the aid of CJ under total transmit power constraint is considered as an optimization problem. In this regard, invasive weed optimization (IWO) algorithm‐based approach is proposed to facilitate optimal power allocation for the considered network. In this analysis, performance metric secrecy rate is analyzed with CJ at both NOMA users by varying the location of eavesdropper with respect to the relay and jammer. In addition, the performance of fixed power allocation (FPA) and proposed power allocation (PPA) schemes is investigated with CJ and compared with jamming (J) and without jamming (WJ) conditions. Simulation result analysis specifies that secrecy performance is enhanced remarkably by CJ and PPA outperforms the FPA.
In this letter, we consider a non-orthogonal multiple access (NOMA) network with a half-duplex (HD) decode-and-forward (DF) relay to improve physical layer security (PLS) of two users. Two legitimate users of U1 and U2 are far from the multi-antenna base station (BS). Thus, a relay with multi-antenna is used to enhance communication and obtain diversity gain. In the first stage, the BS transmits the superimposed signal to the relay via NOMA. Meanwhile, U1 generates the jamming signal to the eavesdropper (Eve). In the second stage, the relay forwards the signal to two users while the BS transmits the jamming signal to disrupt the eavesdropping. It is assumed that the Eve has strong eavesdropping ability. Thus, we need to introduce jamming to guarantee security. Furthermore, we use U1 instead of a full-duplex (FD) relay to send the jamming signal in the first stage to avoid self-interference. To measure the secrecy performance, a closed-form expression of secrecy outage probability (SOP) is derived for the two users. Simulation results are provided to verify the correctness of the proposed scheme.
This paper presents a new control jamming (CJ) scheme for AF relay aided NOMA network with optimal power allocation. The network contains a source, which forwards the multiplexed signal to the NOMA users by employment of AF relay. The jammer node forwards the interference signal to secure the confidential information of users against the eavesdropper attack. Secrecy rate enhancement at the NOMA user with the aid of CJ under total power constraint is taken as an optimization problem. The optimal power allocation factors of considered network are investigated using Invasive-Weed-Optimization (IWO) algorithm. The physical layer security of the network is analyzed in terms of secrecy rate under CJ condition. Furthermore, the secure performance gap between fixed and proposed power allocation schemes are examined with CJ and compared with other jamming conditions. Finally, the simulation results demonstrate that the secrecy performance is enhanced remarkably by CJ and proposed-power-allocation outperforms the fixed-power-allocation.
Non-orthogonal multiple access (NOMA) is an important technology for the forthcoming 5G and beyond. However, its privacy often suffers from adversarial eavesdropping, especially for the users with higher transmit power. In this paper, we propose a jamming-aided secure transmission scheme for cooperative NOMA networks with a full-duplex (FD) relay. In this scheme, two pairs of users perform secure transmission with the help of a decode-forward (DF) relay, which forwards information and generates artificial jamming to counteract eavesdropping. The precoding vectors are designed to zero-force the artificial jamming at legal receivers. Then, the channel statistics are calculated, based on which the expressions of secrecy outage probability (SOP) are derived. Simulation results show the accuracy of our analysis, and demonstrate that the proposed scheme can effectively reduce the SOP and improve the effective secrecy throughput via artificial jamming and FD relaying.