… relay selection in conventional networks, we investigate the adaptive cooperation diversity
with best-relay selection in cognitive radio networks… gain in cognitive radio networks and show …

… cognitive radio systems with relay selection. In particular, they consider a secondary multi-relay
network … only the ‘best’ relay is selected, which satisfies an index of merit. The proposed …

… propose two relay selection schemes, namely both single-relay and multi-relay selection, for
… More specifically, in the single-relay selection (SRS) scheme, only a single relay is chosen …

… relays to help transmit their packets. We focus on the problem of relay selection, ie, how to
efficiently find an appropriate relay … This problem is referred to as cooperative relay selection [7…

… 1, we consider a cognitive radio network, where multiple cognitive relays (CRs) are
available to assist a cognitive source (CS) for both the spectrum sensing and data transmission …

… at the primary network. Specifically, we introduce several relay selection schemes based on
the … , we propose and compare three relay selection approaches, namely, opportunistic relay …

… In this paper, we investigate the performance of relay selection in an underlay cognitive radio
… multi-relay network operating in the AF mode and only one relay is selected. The proposed …

… probability of the SU network with relay selection, under both a … CONCLUSIONS In this
contribution, several distributed RA … SU network with multi-antenna AF-relay selection, while …

… the feasibility of relay-assisted D-OFDM by implementation in software defined radio. • We
identify new resource allocation problems in cognitive relay networks, ie, joint relay selection …

… the performance of cognitive radio networks while benefiting from the existence of the both
… system with multiple relays and antenna selection to the opportunistic relay selection. In such …