Imperfect jamming cancellation on NOMA networks with randomly located eavesdroppers

This paper addresses the secrecy performance of the downlink of a non-orthogonal multiple access network in the presence of multiple randomly located eavesdroppers. The network consists of a base station and a near receiver that are located inside a protected zone, free of eavesdroppers, while a far...

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Bibliographic Details
Main Authors: da Silva, G. M., Osorio, D. P. M., Latva-aho, M.
Format: Conference Proceeding
Language:English
Subjects:
Geometry
Intentional jamming
Interference cancellation
Monte Carlo methods
NOMA
non-orthogonal multiple access
physical layer security
Probability
Receivers
stochastic geometry
successive interference cancellation
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Summary:This paper addresses the secrecy performance of the downlink of a non-orthogonal multiple access network in the presence of multiple randomly located eavesdroppers. The network consists of a base station and a near receiver that are located inside a protected zone, free of eavesdroppers, while a far user is located outside. Herein, it is considered that the source transmits a superposed jamming signal to enhance the secrecy performance. In this sense, imperfections on the removal of the jamming signal by the legitimate receivers are also investigated. Integral-form exact and closed-form approximate expressions for the secrecy outage probability are derived by employing stochastic geometry tools. The expressions are corroborated via Monte Carlo simulations.
ISSN:2166-9589
DOI:10.1109/PIMRC50174.2021.9569573