Imperfect jamming cancellation on NOMA networks with randomly located eavesdroppers
da Silva, G. M.; Osorio, D. P. M.; Latva-aho, M. (2021-10-22)
G. M. da Silva, D. P. M. Osorio and M. Latva-aho, "Imperfect jamming cancellation on NOMA networks with randomly located eavesdroppers," 2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2021, pp. 708-713, doi: 10.1109/PIMRC50174.2021.9569573
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https://urn.fi/URN:NBN:fi-fe2022012610335
Tiivistelmä
Abstract
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.
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