PLS of NOMA Relaying Networks Under Fisher-Snedecor \mathcal Composite Fading

Non-orthogonal-multiple-access (NOMA) technique has been considered to fulfill the exponential increase in wireless devices, data traffic, and access demand. Still, NOMA-aided systems are subject to wireless attacks such as eavesdropping. As a solution to encounter such menace, physical layer securi...

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Bibliographic Details
Published inIEEE International Conference on Communications (2003) pp. 4515 - 4520
Main Authors Mensi, Neji, Rawat, Danda B.
Format Conference Proceeding
LanguageEnglish
Published IEEE 28.05.2023
Subjects
Closed-form solutions
Communication system security
Eavesdropping
Fisher-Snedecor
NOMA
Physical Layer Security
Rayleigh channels
Relaying System
Resource management
Upper bound
Wireless communication
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Summary:Non-orthogonal-multiple-access (NOMA) technique has been considered to fulfill the exponential increase in wireless devices, data traffic, and access demand. Still, NOMA-aided systems are subject to wireless attacks such as eavesdropping. As a solution to encounter such menace, physical layer security (PLS) has been widely adopted to protect the networks from an information theoretic perspective. In this paper, we analyze the PLS of a downlink NOMA-aided network while employing a decode-and-forward (DF) relaying system. We assume the generalized Fisher-Snedecor composite fading \mathcal{F} , wherein Nakagami-m, Rayleigh, and one-sided Gaussian are special cases. Under those assumptions, we derive the closed-form expressions of the outage probability (OP), ergodic capacity, average secrecy capacity (ASC), and upper bound approximations. Our results are validated with Monte Carlo simulations, where they indicated that the power allocation ratio in NOMA and the fading parameters have a major impact on the system's robustness against the eavesdropping attack.
ISSN:1938-1883
DOI:10.1109/ICC45041.2023.10278780