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 …

Cooperative spectrum sensing has been shown to be able to greatly improve the sensing
performance in cognitive radio networks. However, if cognitive users belong to different …

The ability to intelligently utilize resources to meet the need of growing diversity in services
and user behavior marks the future of wireless communication systems. Intelligent wireless …

Compressive sensing is a new signal processing paradigm that aims to encode sparse
signals by using far lower sampling rates than those in the traditional Nyquist approach. It …

The stringent requirements of wireless multimedia transmission lead to very high radio
spectrum solicitation. Although the radio spectrum is considered as a scarce resource, the …

This article provides a comprehensive survey of cognitive radio technology, focusing on its
application to dynamic spectrum access, especially from the perspective of realizing …

Rapid spectrum usage in wireless networks may reduce energy efficiency, requiring
cognitive radio networks to be more efficient than conventional ones. Due to increased data …

In recent years, the security issues of the cognitive radio (CR) networks have drawn a lot of
research attentions. Primary user emulation attack (PUEA), as one of common attacks …

Spectrum sensing, which aims at detecting spectrum holes, is the precondition for the
implementation of cognitive radio (CR). Collaborative spectrum sensing among the cognitive …

This paper analyzes the performance of an energy detector over wireless channels with
composite multipath fading and shadowing effects. These effects are modeled by using the …