The wireless spectrum demand is at a constant rise in contrast to its scarcity. Cognitive
Radio Networks (CRN's) as a notion was first brought into the light to tackle this issue. A …

The radio spectrum is witnessing a major paradigm shift from fixed spectrum assignment
policy to the dynamic spectrum access, which will completely change the way radio …

Worldwide regulatory agencies have observed that most of the radio frequency spectrum is
inefficiently utilized. For example, cellular network frequency bands are over-loaded and …

Wireless networks are under constant pressure to provide ever higher data rates to
increasing numbers of users with greater reliability. At the same time they are becoming …

Wireless networks are confronted with enormous challenge because of the limited
availability of radio spectrum, which has culminated in spectrum congestion and ineffective …

Due to the increasing demand for new wireless services and applications as well as the
increasing number of wireless users, the available spectrum is becoming increasingly …

Due to the rapid development of wireless communications together with the inflexibility of the
current spectrum allocation policy, radio spectrum becomes more and more exhausted. One …

This chapter describes state-of-the art techniques to improve performance of spectrum
sensing and spectrum management in Cognitive Radio Networks (CRN) by leveraging …

Cognitive Radio (CR) paradigm represents an innovative solution to mitigate the spectrum
scarcity problem by enabling Dynamic Spectrum Access (DSA), defined in order to conciliate …

This monograph addresses the spectrum-scarcity problem by providing a comprehensive
overview of spectrum resource management in Cognitive Radio Sensor Networks (CRSNs) …