Abstract Dynamic Spectrum Access/Cognitive Radio systems access the channel in an
opportunistic, non-interfering manner with the primary network. These systems utilize …

Due to the huge number of diverse wireless devices and technologies, spectacular
increases in the number of wireless subscribers, advent of new applications and continuous …

Cognitive radio network (CRN) is a pioneering technology that was developed to improve
efficiency in spectrum utilization. It provides the secondary users with the privilege to …

Cognitive radio is a technology developed for the effective use of radio spectrum sources.
The spectrum sensing function plays a key role in the performance of cognitive radio …

Cognitive radio networks require fast and reliable spectrum sensing to achieve high network
utilization by secondary users. Optimization approaches to spectrum sensing to-date have …

Thao Tran Nhu Nguyen, Ph. D. George Mason University, 2013 Dissertation Co-director: Dr.
Brian L. Mark Dissertation Co-director: Dr. Yariv Ephraim Cognitive radio is an emerging …

Existing spectrum sensing methods for cognitive radio do not consider the secondary
network's characteristics to obtain the frequency of spectrum sensing, ie, the sensing period …

The continuous growth of demand experienced by wireless networks creates a spectrum
availability challenge. Cognitive radio (CR) is a promising solution capable of overcoming …

Communication technologies are evolving drastically in recent years. However, the scarcity
of spectrum began to appear with the accelerating usage of various communication …

There has been an increase in wireless applications due to the technology boom;
consequently raising the level of radio spectrum demand. However, spectrum is a limited …