… relay selection problem in CR networks when operating in the spectrum sharing model.
Specifically, the secondary users (SUs) in the CR-NOMA … , partial relay selection architecture is …

… relay selection scheme (PRSS) on cooperative underlay cognitive radio (CR) non-orthogonal
multiple access (NOMA) … Decodeand-forward (DF) protocol is used at the selected relay to …

… a reactive relay scheme for cooperative CR-NOMA networks to select the best relay from
potential … Being focused on RS in CR-NOMA networks, this paper considers a cooperative CR-…

… be achieved as deploying relay selection schemes. In this investigation, NOMA and CR
scheme are considered as promising techniques to introduce new model of CR-NOMA and to …

… Relay selection in cooperative NOMA has been recently studied to improve the … of relay
selection in cooperative NOMA networks [16]. The authors proposed a twostage relay selection …

… Inspired by [6,28], this paper investigates adaptive relay selection and power allocation in
cooperative underlay CR-NOMA networks by considering mutual interference and constraints …

… and ergodic rate for NOMA were derived in [8] by … NOMA, where both the outage performance
of fixed power allocation based NOMA (F-NOMA) and cognitive radio based NOMA (CR…

… an interesting topic in the CR-NOMA system. Cooperative CR networks use a joint relay
selection scheme to improve reliability in CR-NOMA networks [19]. Recent studies prove that …

… complexity after combining multi-relay selection and multi-antenna selection in this model,
this paper proposes a joint relay-and-antenna selection scheme, which can greatly reduce the …

… To address this challenge, we consider relay aided underlay CR-NOMA, where a relay
node provides radio coverage extension for the secondary network. However, the inter-network …