… We assume cognitive radios to operate in the underlay mechanism (eg, [16], [19], [20], [21],
[22]), and hence, S s and S b interfere the PU, namely P p , but the interference level at P p …

… a two-way relaying scheme using digital network coding in an underlay cognitive radio
network. In the proposed scheme, the transmit antenna selection and selection techniques are …

… by the highest SSR from among all the available relays. Hence, in this paper, we study relay
selection and PA problems for SSR maximization in the proposed network, and we further …

… Cognitive relay networks (CRNs) are formed by integrating cooperative relaying into cognitive
radio networks … FD/HD relay selection algorithm for a cooperative NOMA network, with the …

… network where contains relay selection strategy under limitation of interference of secondary
source and secondary relay on … cognitive radio downlink transmission with relay selection. …

… hop relay selection strategy named MaxDS-CRN is proposed for multi-hop underlay cognitive
radio networks (… In this strategy, relay selection in each decoding set only depends on the …

… ,28] skipped impacts of both imperfect CSIs and hardware impairments to the system
performance of the underlay relay selection cognitive radio networks under interference constraints. …

… 1, we consider a cognitive radio network composed of a primary and a secondary networks.
… following, we consider three relay selection techniques : Opportunistic AF relaying, Partial …

… HARQ in underlay cognitive radio networks using blind relays which is the aim of this paper.
… 1, we consider a cognitive radio network composed of a primary and secondary networks. …

… error probability of cognitive radio networks. Our analysis is valid when the powers of
secondary source and relays are adaptive. The secondary source and relays can adapt their …