This letter presents a problem of designing a relay precoding matrix for a multi-input multi-
output cognitive relay network, where a secondary system (SS) works in an underlay mode …

This paper addressed the problem of designing the relay precoding matrix for multiple-input
multiple-output-cognitive relay network (MIMO-CRN), where a secondary transmitter (SU-Tx) …

A study is presented of an optimal relay precoder design for non-regenerative MIMO
cognitive relay systems where all the nodes are equipped with multiple antennas. With …

The problem of joint precoder design for the source and relay nodes of a cooperative
cognitive radio (CR) system is investigated. We consider a non-regenerative relaying …

This paper investigates the problem of energy efficient relay precoder design in multiple-
input multiple-output cognitive relay networks (MIMO-CRNs). This is a non-convex fractional …

In this paper, we study the problem of relay precoder design in a multi-antenna non-
regenerative relay cognitive radio (CR) system assuming underlay spectrum sharing …

This study addresses the energy efficiency (EE) maximisation problem in multi‐input multi‐
output cognitive relay networks, where a secondary transmitter–receiver pair communicates …

Optimal relay precoding design is studied for spectrum sharing non-regenerative multi-hop
MIMO cognitive relay systems. By exploiting multiple antennas at all the nodes, the optimal …

For the non-regenerative multiple-input multiple-output (MIMO) cognitive multi-relay network,
we propose an optimal relay selection and beamforming scheme which maximizes the …

Transceiver with Tomlinson–Harashima (TH) precoding outperforms the linear minimum
mean-square-error (MSE) architecture in terms of minimum achievable MSE. In this paper …