Biblio
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2017. Physical layer security transmission in cognitive radio network composed of multi-downlinks SU network. 2017 IEEE 17th International Conference on Communication Technology (ICCT). :898–901.
In cognitive radio network, the primary user (PU) network and the secondary user (SU) network interfered with each other because of sharing the spectral resource. Also interference among multi-downlinks in SU network decreased the sum rate in SU network and the eavesdropper in PU network decreased the secrecy rate in PU network. Focusing on above problem, this paper raised two channel selection and beamforming methods based on singular value decomposition (SVD) and uplink-downlink duality respectively, and then analyzed the performance of them in physical layer security.