… physical layer security for cooperative cognitive radio networks (CCRNs) with relay selection
in the … To be specific, we propose three relay selection schemes, namely, opportunistic relay …

… sharing cognitive radio network, where the primary system leases its radio spectrum to the
secondary system for a fraction of time in exchange for secondary users served as relays to …

A cognitive radio scenario is considered where the signals … -antenna relays using an
amplify-and-forward cooperation … probability of the SU network with relay selection, under both a …

… Firstly, unlike the previous research about relay selection in conventional networks, we
investigate the adaptive cooperation diversity with best-relay selection in cognitive radio networks…

… as cooperative relays to help transmit their packets. We focus on the problem of relay selection,
ie, how to efficiently find an appropriate relay that … to as cooperative relay selection [7], [8]. …

… a simple wireless network, where a spectrum-rich node is selected as the relay node to improve
… With the introduction of cooperative relay, many unique problems should be considered, …

… 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 …

… Abstract—This paper investigates relay selection policies in a full-duplex (FD) based underlay
cooperative cognitive radio network. We consider a scenario consisting of multiple pairs of …

… the secrecy performance of a half-duplex cognitive relay network in the presence of multiple
… relay selection schemes for opportunistic relay selection (ORS) and partial relay selection (…

… 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 …