In this work, a reconfigurable intelligent surface (RIS)-aided millimeter wave (mmWave)
multiple-input multiple-output (MIMO) cognitive radio (CR) downlink operating in the …

A hybrid transceiver architecture along with the optimal power allocation is conceived for a
downlink millimeter wave (mmWave) multi-input multi-output (MIMO) cognitive radio (CR) …

This paper proposes a cognitive radio network (CRN)-based hybrid wideband precoding for
maximizing spectral efficiency in millimeter-wave relay-assisted multi-user (MU) multiple …

In this work, we address the problem of a joint robust transmission, reflection and reception
strategy design at an active reconfigurable intelligent surface (RIS)-assisted underlay …

Relay-assisted hybrid beamforming plays an inevitable role in enhancing network coverage,
transmission range, and spectral efficiency while simultaneously reducing hardware cost …

In this work, frequency selective hybrid precoders and combiners are designed for a
millimeter wave (mmWave) multiuser (MU) multiple-input-multiple-output (MIMO) downlink …

Reconfigurable intelligent surface (RIS) is an emerging next-generation technology that can
improve the energy efficiency using multiple low-power passive metasurfaces which reflect …

A hybrid transceiver architecture is conceived for a cognitive radio (CR) aided millimeter
wave (mmWave) multiuser (MU) multiple-input multiple-output (MIMO) downlink system …

In this paper, the problem of joint design of spectrum sensing (SS) and receive
beamforming, with reference to a cognitive radio (CR) system, is considered. The aim of the …

This paper considers an active reconfigurable intelligent surface (RIS)-aided multiple-input
single-output (MISO) cognitive radio (CR) system where the active RIS is designed to assist …