… Selection (MTP-TAS), Best NU-Best FU (BNBF) selection, and optimal power allocation,
thereby also motivating NOMA … The selection mechanisms are designed in a way that additional …

… cognitive power allocation scheme to evaluate the reliability and secrecy performance of
secondary user in mmWave NOMA … users from different regions will be selected to implement …

… [14]) that with careful user selection and switching between NOMA and OMA, it is possible …
CR networks using NOMA. In this paper, we demonstrate that a simple user selection scheme …

… NOMA to solve the problems of uRLLC and mMTC in the 5G-enabled IoT. This article studies
NOMA-based cognitive … 3, the idle subcarriers are selected via spectrum sensing, and then …

… of cooperative NOMA cognitive wireless networks. Furthermore, a cognitive collaboration …
also consider a suboptimal cognitive user selection scheme for E-MCU-CR-NOMA system …

… data rate of NOMA users [28]–[30] … two users, which greatly simplifies the system analysis.
In this work, we consider partial relay selection [31] with L NOMA users, where the selection …

… selection in cognitive and non-cognitive cooperative NOMA networks. However, relay selection
in underlay NCRNs is still in its infancy and the aforementioned schemes [24]-[27] select …

… probabilities of two NOMA users. Under the … NOMA users to satisfy QoS requirement.
In addition, we develop a special case at high transmit SNR to indicated insights of such CR-NOMA …

… an overlay CR-NOMA network under the secrecy constraint of primary users, where the
sec… of primary users for exchanging an opportunity to access the spectrum of primary users. …

… Therefore, the best user selection and (or) relay selection play a very significant role to
optimize the performance of system and improve reliability, network coverage, and achievable …