… our relay selection scheme. In particular, we compare our proposed scheme with the random
relay selection … We consider a simple cognitive radio network that consists of some primary …

… random cognitive radio network (CRN) consisting of randomly distributed primary nodes,
secondary nodes, relay … –reliability tradeoff (SRT) in the random CRNs, where the security and …

… the physical layer security for cognitive radio network (CRN) will … Moreover, relay selection
scheme is proposed for the security … Therefore we assume independent random variables and …

… relay selection, we also propose an efficient relay selection strategy which limits the number
of candidate relays … sity scheme with best-relay selection in cognitive radio networks,” IEEE …

… For example, if the random variables (RVs) |hie|2 related to the different relays are iid, we
can readily infer by the law of total probability that |hbe|2 has the same probability density …

… , we propose an antenna selection scheme to select the antenna with the … able relays and
use antenna selection at the receiver to extract the same diversity order. We show that random …

… security for cooperative cognitive radio networks (CCRNs) with relay selection in the … relay
selection schemes, namely, opportunistic relay selection (ORS), suboptimal relay selection …

… In particular, when the cognitive radio network operates in the downlink scenario, we must
… 7, we simulate the random relay selection approach to compare with the performance of our …

… 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 …

… 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 …