… a predefined secrecy rate (ie, Rs). It can be observed that the intercept probability is just a
special case of the secrecy outage probability with Rs = 0, showing that the secrecy outage …

… secrecy outage performance of cooperative cognitive radio networks (CCRN) was derived
under interference constraints from the PU. Secrecy outage … achieve secrecy outage towards …

… secrecy outage performances of optimal antenna selection (OAS) and suboptimal antenna
selection (SAS) schemes for MIMO underlay cognitive radio systems … secrecy outage probabil…

… systems. • To measure the average time period, during which the system remains in the
secrecy outage … Then, based on the derived expressions of secrecy outage probability (SOP), …

… Abstract—In this work, an underlay cognitive radio system, which consists … secrecy outage
performance of the PU system. The approximated closed-form expression for secrecy outage …

… a jamming signal to strengthen secrecy. We investigate two models of (… secrecy outage
probability in the downlink for the HD and FD UE operation. The expressions for the HD systems …

… systems from a physical layer security point-of-view. This paper analyzes the secrecy performance
of a CR SWIPT system … and asymptotic SOPs of this system are derived in closed-form…

This paper considers a single-input-multiple-output underlay cognitive wiretap system over
Nakagami-m channels with generalized selection combining, where confidential messages …

… compromised, and the system is said to be in outage4. Otherwise, perfect secrecy can be
achieved. Here, to measure such an outage, we adopt the secrecy outage probability. We first …

… To evaluate the secrecy performance, we derive the closed-form expressions of the
secure outage probability (SOP) of each user, the overall SOP and the sum effective secrecy …