In this correspondence, an adaptive cooperation diversity scheme with best-relay selection
is proposed for multiple-relay cognitive radio networks to improve the performance of …

In this paper, we consider a multiple-input-multiple-output (MIMO) system consisting of one
source, one destination, and one eavesdropper, where each node is equipped with an …

In cognitive radio networks, each cognitive transmission process typically requires two
phases: the spectrum sensing phase and data transmission phase. In this paper, we …

Typically, each cooperative spectrum sensing process requires two phases: the primary
user's signal detection phase, in which all cognitive users attempt to detect the presence of …

In cognitive radio networks, a cognitive source node requires two essential phases to
complete a cognitive transmission process: the phase of spectrum sensing with a certain …

In this correspondence, we investigate a selective relay spectrum sensing and best relay
data transmission (SRSS-BRDT) scheme for multiple-relay cognitive radio networks …

In this paper, a two-phase protocol for relay-assisted spectrum sharing in cognitive relay
network is proposed. The primary system comprises a transmitter-receiver pair (PT-PR) and …

We investigate the performance of orthogonal frequency division multiplexing (OFDM)-
based dual-hop amplify-and-forward (AF) relay networks in the presence of phase noise …

In this paper, we first explore a selective cooperation framework for secondary user
transmissions in a cognitive radio network with single relay. In the selective cooperation …

In this study, the authors present and investigate a novel cooperative relaying scheme for
cognitive radio networks (CRNs), which is based on non‐orthogonal multiple access …