Reliability and security analysis of NOMA-UAV communication network in intelligent eavesdropping environment

Wen Yang (), Enyu Li (), Yinuo Zhao () and Rongyu Wang ()
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Wen Yang: Qingdao University of Technology
Enyu Li: Qingdao University of Technology
Yinuo Zhao: Qingdao University of Technology
Rongyu Wang: Qingdao University of Technology

Telecommunication Systems: Modelling, Analysis, Design and Management, 2025, vol. 88, issue 3, No 22, 13 pages

Abstract: Abstract In wireless communication systems, an unmanned aerial vehicle (UAV) is used as a non-orthogonal multiple access (NOMA) mobile base station to provide efficient connectivity services to ground users. We develop a UAV downlink system model that features automatic adjustment of the power distribution coefficients. To ensure secure communications against an intelligent eavesdropper that can adaptively switch between eavesdropping and interference modes based on channel conditions, a UAV jammer is deployed to reduce the intercept probability (IP) when the eavesdropper operates in passive eavesdropping mode. Considering the imperfect successive interference cancellation (SIC) technique, the exact closed-form results of outage probability (OP) and IP in the Nakagami-m fading environment are derived. Finally, the accuracy of the theoretical derivation is verified by Monte Carlo simulation. The numerical simulation results demonstrate that the transmit power, power allocation coefficients, line-of-sight (LoS) probability, and motion coefficient of the UAV significantly influence system performance, highlighting the importance of optimization.

Keywords: Non-orthogonal multiple access; Unmanned aerial vehicle; Intelligent eavesdropper; Successive interference cancellation (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s11235-025-01334-7

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