In this letter, we study the outage performance of cognitive relay networks with multiple
primary users in imperfect channel state information environment. Specifically, an exact …

This letter presents the outage performance analysis for a cognitive relay network (CRN)
with imperfect channel knowledge estimations. Under the condition of imperfect channel …

This letter evaluates the outage probability of cognitive relay networks based on the
underlay approach, while considering the mutual interference between cognitive system and …

In this study, the author investigates the outage performance of cognitive relay networks, in
which the best relay is selected based on full and partial channel state information …

In the presence of the primary user's interference, the outage probability of a dual-hop
decode-and-forward (DF) cognitive relay network (CRN) over Rayleigh fading channels is …

In this letter, exact outage probability of decode-and-forward (DF) and incremental DF (IDF)
relaying are respectively derived over underlay cognitive relay networks. Particularly, we …

In this letter, we propose two relay selection schemes in cognitive relay networks. According
to the proposed schemes, the number of relays involved in the opportunistic relaying is …

In this letter, considering a cognitive relay network with the maximum transmit power limit in
a spectrum sharing scenario, the exact outage probability of secondary system is derived …

This paper investigates the effect of imperfect channel information on the outage
performance of underlay cooperative cognitive networks with reactive relay selection under …

Cognitive relay networks employ cooperative relaying scheme in the cognitive secondary
user transmission. In this letter, we theoretically derive a closed form expression and a lower …