Physical Layer Security for CR-NOMA Network with Cooperative Jamming

IF 6.6 1区 计算机科学 Q1 Multidisciplinary Tsinghua Science and Technology Pub Date : 2024-12-09 DOI:10.26599/TST.2023.9010128
Meiling Li;Peng Xue;Hu Yuan;Yuxing Han
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引用次数: 0

Abstract

Cooperative jamming can effectively combat eavesdropping in physical layer security communication without affecting the legal receiver and improve the security performance of the system. This paper introduces cooperative jamming to cognitive radio (CR) networks with non-orthogonal multiple access (NOMA) technology. The secure performance of the considered CR and NOMA (CR-NOMA) network is evaluated using two modes: non-cooperative jamming and cooperative jamming. In particular, the secrecy outage probabilities (SOPs) of the primary user (PU) in the two modes are derived under Rician fading channels, based on which, the influences of the transmission signal-to-noise ratio (SNR) of secondary users (SUs), the number of SUs, the secrecy rate, and the power allocation coefficient on the SOPs of PU are analyzed thereafter. Both analysis and simulation results show that cooperative jamming effectively prevents eavesdropping behaviour, which reduces the SOP of PU compared to non-cooperative jamming. We also show that the transmission SNR, the number of SUs, the secrecy rate, and the power distribution coefficients greatly influence performance improvement.
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具有合作干扰功能的 CR-NOMA 网络的物理层安全性
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来源期刊
Tsinghua Science and Technology
Tsinghua Science and Technology COMPUTER SCIENCE, INFORMATION SYSTEMSCOMPU-COMPUTER SCIENCE, SOFTWARE ENGINEERING
CiteScore
10.20
自引率
10.60%
发文量
2340
期刊介绍: Tsinghua Science and Technology (Tsinghua Sci Technol) started publication in 1996. It is an international academic journal sponsored by Tsinghua University and is published bimonthly. This journal aims at presenting the up-to-date scientific achievements in computer science, electronic engineering, and other IT fields. Contributions all over the world are welcome.
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