In order to mitigate the shortage of wireless spectrum, the appealing concepts of cooperative
communication techniques and cognitive radio (CR) networks have been combined for the …

Applications for Unmanned Aerial Vehicles (UAVs), operating in unlicensed bands, are
vastly growing with the consolidation of the Internet of Things (IoT). However, those bands …

We investigate the impact of multiple primary users (PUs) and fading on the spectrum
sensing of a classical energy detector (ED). Specifically, we present the novel closed-form …

We propose an adaptive transmission scheme for cognitive decode-and-forward relaying
networks, whereby, before each communication process, one out of three transmission …

During the last decades, wireless communications have evolved from a scarce technology,
used by professionals for niche applications to a rapidly advancing research field. Ever …

To achieve a trade-off between the implementation complexity and reliability, in this work we
develop a novel decentralized scheduling technique for the cognitive multi-user multi-relay …

In this paper, a new full-duplex (FD) relaying scheme for a cooperative cognitive underlay
network is proposed. The secondary network is composed of one secondary transmitter, one …

In this paper, we derive closed‐form exact expressions for the main statistics of the ratio of
two squared α‐μ random variables, which are of interest in many scenarios for future …

In this work, we study the cognitive decode-and-forward (DF) relaying, where a primary user
(PU) communicates with an access point (AP), and in the same geographical region, a …

For the underlay spectrum sharing, a primary transmitter (PT) and a secondary transmitter
(ST) can transmit simultaneously to a primary receiver (PR) and a secondary receiver (SR) …