… It should be noted that we can further expand our results by obtaining the CP metric for
more than five users by deploying geometric programming from Section IVB. However, …

… systems. In this article, we appraise the performance of an overlay cognitive NOMA (OCNOMA)
system … user acts as an EH relay, and by adopting PS scheme, it helps a weak NOMA user…

… In practical systems, obtaining the perfect CSI of IoT networks is extremely difficult, and the
imperfect CSI is a common phenomenon in 5G applications, eg, the outdated CSI caused by …

… radio NOMA networks, where a group of multicast secondary … for cooperative cognitive
radio NOMA networks under a fixed … user in NOMAassisted Internet of things (IoT) networks, …

… works cannot be introduced into overlay CR-NOMA networks directly and it is challenging
to obtain the closed-form expressions for secrecy metrics in overlay CR-NOMA networks. …

… In the considered cognitive STBC-NOMA IIOT system, we show how the presence of … by
the STBC-NOMA compared to SANOMA in the considered cognitive IIOT network. Moreover, the …

… 75 overlay CNOMA system tailored for the IoT environment. Recently, an overlay cognitive
backscatter communication 77 NOMA network for intelligent transportation systems was 78 …

… As a result, it is interesting to consider a system that combines cognitive OFDM with … networks
without licensed spectrum. In this paper, we propose a cognitive OFDM-NOMA system and …

… CR network-based on NOMA (CCR-NOMA) for M2M communication to optimize channel
sensing. The CR-NOMA system … It is noted also that the overall achievable throughput of the CR-…

… -NOMA combines the advantages of both the techniques, it is … CR-NOMA network, the research
on EE for such network can … two CR networks modes, a SWIPT based CR-NOMA system …