… is selected randomly from the vacant subchannel set, and the secondary user is selected …
number of secondary users on the secrecy throughput for NOMA-based cognitive radio network …

… Abstract—Cognitive radio (CR) and non-orthogonal multiple access (NOMA) have been …
This paper studies a multiple-input singleoutput NOMA CR network relying on simultaneous …

… CR-NOMA system under the constraints of a minimum information rate for the secondary
users, … a grouping scheme where two users are selected for each group (strong user and weak …

… a NOMA-enabled cognitive satellite-UAVterrestrial network with imperfect CSI under the
Gaussian error model, where CR and NOMA … network selection,” IEEE Trans. Veh. Tech., vol. …

… A max-max user-relay selection approach is provided to minimize the outage probability
of the considered system [4]. The authors in [5] presented the average symbol error rate (SER) …

… modes as well as performing user selection, large performance gains can be achieved
over conventional OMA. The authors in [16] have examined the impact of CSI imperfection on …

In this paper, we design a secure transmission scheme in hybrid automatic repeat request (HARQ)
assisted cognitive non-orthogonal multiple access (NOMA) networks, where a security…

… of CR-NOMA under the partial relay selection scheme as well as … of cognitive users when
employing the NOMA and … on the performance of underlay CRNOMA DF relaying networks was …

… cognitive radio and non-orthogonal multiple access (NOMA) … article, we investigate
NOMA-assisted cognitive STN under … Generalized coverage probability formulas for NOMA users …

… Multicast CRNs incorporating NOMA are considered in [6]. To be specific, a dynamic … joint
relay selection and power allocation (J-RS-PA) for NOMA-based multicast cognitive networks …