This paper analyses the outage performance of a multihop relay-based cognitive radio
network under imperfect channel state information. A backoff power control scheme is …

In this paper, an adaptive two-way relay cooperation scheme is studied for multiple-relay
cognitive radio networks to improve the performance of secondary transmissions. The power …

In underlay cognitive radio networks, imperfect channel knowledge will have an adverse
effect on the performance of both the primary users (PU) and the secondary users (SU) …

For cognitive relay networks coexisting with multiple primary transceivers, we investigate the
secondary system performance using outdated channel state information (CSI). We propose …

In this study, we investigate the outage capacity of a cooperative relaying based cognitive
radio network in slow fading channel. Our network scenario consists of a primary transmitter …

This paper studies best relay selection in a multi-cell cognitive network with amplify-and-
forward (AF) relays. We derive the analytical integral-form expression of the cumulative …

In this paper, the outage performance of a cognitive radio network with a pair of secondary
transmitter and receiver is investigated in the presence multiple primary users over a …

In this paper, we evaluate two-way relay communication systems in cognitive radio
environments. The proposed model includes two subsystems: a primary system and a …

In this paper, we consider an underlay cognitive radio network assisted by dual-hop decode-
and-forward (DF) relaying. For a general multi-user network, we adopt a max-min fairness …

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