… be optimal at the moment, we selected various policies that do not … selecting the action with
the largest value inside the current Q-Table is 1 − ε, and the probability of randomly selecting …

… (NOMA) grouping transmission scheme for cognitive radio networks. To address the problems
of small channel gain difference of the middle part users … can adaptively select the best …

… the increase in the number of selected relays. In this paper, the problem of joint relay selection
and power allocation (J-RS-PA) for NOMA multicast cognitive radio networks is studied. …

… surface (RIS)-aided cognitive non-orthogonal multiple access (NOMA) systems, where
an RIS is deployed to serve two users under multi-primary users’ constraints. Our analysis …

… Giving each user the necessary power in NOMA based on … , selecting a user to be paired
with another one in NOMA systems… user pairing and dynamic power allocation, downlink NOMA-…

… with better performance were selected to help the strong users. In [11], the FD … NOMA users
transmission, which indicated that the FD NOMA was superior to the half duplex (HF) NOMA …

… cognitive scenarios and can not be easily applied to the underly CRNs. In [21], the authors
introduced CR to NOMA network and propose two secondary user selection … the primary user. …

… 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) …