A promising way to improve the performance and guarantee the quality of service (QoS) of
cognitive wireless cooperative relay networks is to jointly employ physical-layer network …

We evaluate the performance of a network‐coded cooperative secondary network in a
cognitive radio system under spectrum sharing constraints. The secondary network is …

We consider a cognitive radio network where a primary and a secondary transmitter,
respectively, communicate a message to their primary and secondary receivers over a …

In this work, we examine cognitive radio networks, where secondary users may act as relays
for messages sent by the primary user, hence offering performance improvement of primary …

Spectrum sensing and data transmission over the unoccupied spectral band could be the
communication with lesser transmission error while sensing and data transmission takes …

This doctoral thesis is focused on two problems of cooperative networks. The first (Chapter
2) is the study of utilization of side information that the nodes of a wireless network acquire …

With significantly growing demand for wireless networks and services in recent years, the
issue of spectrum efficiency has taken a more and more important role in the design of …

We consider a cognitive radio network scenario where a primary transmitter and a
secondary transmitter, respectively, communicate a message to their respective primary …