On the physical layer security performance of full-duplex cooperative NOMA system with multiple eavesdroppers, imperfect SIC and hardware imperfections

In this letter, we propose a control jammer-assisted framework for improving the physical layer security (PLS) of full-duplex (FD) - cooperative non-orthogonal multiple access (FD-CNOMA) network. We derive analytical expressions for the secrecy outage probabilities (SOPs) of the users for the jammer-assisted and the no-jammer scenarios, considering multiple non-colluding eavesdroppers, residual hardware impairments and imperfect successive interference cancellation conditions. It is demonstrated that the proposed jammer-assisted framework provides significant reduction of the SOPs experienced by the downlink users in FD-CNOMA network.