%0 Journal Article %A XU Xinjian %A QIU Runhe %T Physical Layer Security of Cognitive Relay Network %D 2020 %R 10.3778/j.issn.1002-8331.1811-0293 %J Computer Engineering and Applications %P 79-85 %V 56 %N 6 %X

This paper studies the outage probability and intercept probability of the primary user and the cognitive user in the cognitive relay network, and puts forward a scheme to Change the Transmission Mode according to the Eavesdropping Behavior(CTMEB), the primary user and the cognitive user adopt different signal transmission methods according to whether or not the user is eavesdropping. If E only eavesdropping CS, the primary user uses direct transmission to transmit the signal, if E eavesdropping CS and PS, the primary user selects the link transmission signal with high SNR according to the channel state. The outage probability and intercept probability of the primary user and the cognitive user are analyzed. Finally, MATLAB is used to verify the effectiveness of the CTMEB scheme in improving the outage probability and intercept probability of the primary user and the cognitive user.

%U http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.1811-0293