… CR–NOMA system outperforms the existing MIMO–NOMA, CR–NOMA and CR–OMA systems
… the CUs' individual throughput, total throughput and interference efficiency of the system. …

… System Model We consider an uplink CR-NOMA system consisting of a primary user U0,
a secondary user U1, and a base-station (BS). Each node is equipped with a single antenna. …

… to investigate the performance of TWR in the CR-NOMA. Moreover, in order to ensure …
CR-NOMA system. Besides, the energy efficiency is proposed to evaluate the CR-NOMA system to …

… Moreover, the proposed system model shows the superiority of the CR-NOMA compared
with cooperative orthogonal multiple access. The derived analytical expressions are …

… Unlike power-domain NOMA, in CR-NOMA, U0 is assumed to … CR-NOMA is to treat NOMA
as a special case of a CR system… CR-NOMA ensures that the secondary users are admitted to …

… • For the considered CR-NOMA system, we apply the IRS to assist the PU’s transmission …
follows: In Section II, the system model of the IRS-CR-NOMA system is presented. In Section III, …

… the performance of CR-NOMA systems, a comparative analysis was conducted with the
relay selection CR-NOMA system (RS CR-NOMA) in [42]. The results are shown in Fig. 4. …

… -inspired nonorthogonal multiple access (CR-NOMA) systems, the successive interference
… This work investigates the secrecy performance of uplink CRNOMA systems with the hybrid …

… Unlike the previous surveys, we provide a detailed discussion about the potential capabilities
of such CR NOMA-based systems. We also provide an overview of combining emerging …

… form for M NOMA-enabled SDUs. Moreover, we evaluate the OP of the CR-NOMA and
conventional CR orthogonal MA schemes … SYSTEM MODEL We consider a downlink two-hop CR-…