Performance Analysis of Physical Layer Security for Cognitive Radio Non-Orthogonal Multiple Access Random Network

Baoquan YU; Yueming CAI; Jianwei HU

doi:10.11999/JEIT190049

Volume 42 Issue 4

Jun. 2020

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Article Navigation > Journal of Electronics & Information Technology > 2020 > 42(4): 950-956

Baoquan YU, Yueming CAI, Jianwei HU. Performance Analysis of Physical Layer Security for Cognitive Radio Non-Orthogonal Multiple Access Random Network[J]. Journal of Electronics & Information Technology, 2020, 42(4): 950-956. doi: 10.11999/JEIT190049

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Baoquan YU, Yueming CAI, Jianwei HU. Performance Analysis of Physical Layer Security for Cognitive Radio Non-Orthogonal Multiple Access Random Network[J]. Journal of Electronics & Information Technology, 2020, 42(4): 950-956. doi: 10.11999/JEIT190049

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Performance Analysis of Physical Layer Security for Cognitive Radio Non-Orthogonal Multiple Access Random Network

doi: 10.11999/JEIT190049

The Army Engineering University of PLA, Nanjing 210007, China

Funds: The National Natural Science Foundation of China(61771487, 61371122,61471393)

Received Date: 2019-01-17
Rev Recd Date: 2019-06-30

Available Online: 2020-01-11

Publish Date: 2020-06-04

Abstract

Abstract

This paper analyzes the security communication performance of secondary user communication pairs in Cognitive Radio Non-Orthogonal Multiple Access (CR-NOMA) networks, where interference sources and eavesdropping nodes are randomly distributed. The stochastic geometry theory is used to model the eavesdropping nodes and the interfering nodes as a homogeneous Poisson Point Processes (PPP). Firstly, to ensure the reliability of the primary user communication pairs, the power allocation coefficient set of the sender is obtained, and the closed expressions of the connection outage probability and the secrecy outage probability of the secondary user are further obtained. Then, the variation of the power distribution coefficient with the constraint of the primary user’s reliability is analyzed. Finally, the relationship between outage probability of secondary user communication pairs and the density of the eavesdropping nodes and the transmission power is studied. The research shows that the enhancement of interfering signal reduces the reliability of the system, but brings about a significant improvement of security performance. The simulation results verify the correctness of the theoretical analysis.
- Cognitive Radio (CR),
- Physical layer security,
- Heuristic Non-Orthogonal Multiple Access (NOMA),
- Random distribution,
- Power allocation

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References

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