ABSTRACT
In recent years, cognitive radio (CR) technology has gained a lot of attention by the research community to alleviate the spectrum shortage problem faced by traditional wireless systems. Equipped with highly flexible spectrum sensing capabilities, CR technology enables radio nodes to change their transmission parameters, so that they can dynamically adapt to spectrum availability in their geographical region. CR nodes scan and identify the unused spectrum resources in the licensed bands without causing any interference to the legitimate users, assigned to these frequency bands [1,2].
