In this paper, we analyze the performance of a cognitive decode-and-forward multi-relay
network (CDFMRN) with a direct link under the joint impact of transceiver hardware …

In this paper, we investigate joint impacts of hardware impairments, imperfect channel state
information (CSI) and interference constraints at secondary users in an underlay decode …

In this paper, we explore the underlay cognitive relay networks in the presence of hardware
impairment. To avoid interfering with the primary user's communications, the transmission …

In this letter, we analyze the performance of cognitive amplify-and-forward multirelay
networks with active direct link in the presence of relay transceiver hardware impairments …

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

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 …

Cognitive relay technology has been envisioned as a promising transmission scheme to
enhance the reliability and coverage of secondary networks. However, the performance of …

The impairments of hardware in physical transceivers are proven to degrade the
performance of wireless systems severely; however, their effects on cognitive relaying …

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secondary system performance using outdated channel state information (CSI).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