This work investigates the energy efficiency (EE) and the spectral efficiency (SE)
performance of multi-hop full duplex cognitive relay networks (MH-FDCRNs) operating in the …

This study investigates optimal power allocation (OPA) for maximising the energy efficiency
(EE) of dual‐hop underlay full‐duplex cognitive relay network, under the influence of …

In this paper, we investigate the energy efficiency maximization (EEM) problem for underlay
cognitive multiuser two-way relay networks, by jointly optimizing the power allocation of …

Due to the enhancement in both spectral efficiency and energy efficiency, cognitive radio
(CR) being combined with relay cooperation technique is deemed as a promising way to …

By introducing amplify‐and‐forward relaying into a cognitive radio system, typical cognitive
relay networks are studied for the optimisation problems of the spectrum and power …

In this paper, a transmit power-saving scheme incorporated with multiple relay-selection for
performance enhancement of underlay relay-assisted cognitive radio networks (RCRNs) is …

In underlay relay-based cognitive radio networks, when the interference imposed on primary
users is below some pre-determined threshold, secondary users can use the licensed …

In this paper, we address the power allocation problem in an underlay cognitive network that
employs multiple non-orthogonal amplify-and-forward relays. The power allocation at the …

In this paper, we study the power allocation in Orthogonal Frequency Division Multiplexing
(OFDM)-based Cognitive Radio (CR) networks with cooperative relay. Since the energy …

This paper investigates power control and relay selection in Full Duplex Cognitive Relay
Networks (FDCRNs), where the secondary-user (SU) relays can simultaneously receive …