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- W1604655204 abstract "We investigate beamforming and artificial noise generation at the secondary transmitters to establish secure transmission in large scale spectrum sharing networks, where multiple non-colluding eavesdroppers attempt to intercept the secondary transmission. We develop a comprehensive analytical framework to accurately assess the secrecy performance under the primary user's quality of service constraint. Our aim is to characterize the impact of beamforming and artificial noise generation on this complex large scale network. We first derive the exact expressions for the average secrecy rate and the secrecy outage probability. Our results show that there exists an average secrecy rate wall beyond which the primary user's quality of service is violated. Interestingly, we find that different from the conventional network with fixed nodes where equal power allocation achieves near optimal average secrecy rate, the equal power allocation may not be a good option for large scale spectrum sharing networks." @default.
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- W1604655204 date "2015-06-01" @default.
- W1604655204 modified "2023-09-27" @default.
- W1604655204 title "On the security of large scale spectrum sharing networks" @default.
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- W1604655204 doi "https://doi.org/10.1109/icc.2015.7249095" @default.
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