A review: Security challenges in cognitive radio networks

摘要

Cognitive Radio (CR) is a technology that envisions the concurrence of legitimate and unauthorized users by permitting them to use the licensed bands and to avoid interference in process. As CR networks are growing rapidly with huge popularity but on the flip side, a number of challenges are being explored. The most common but the most important one of them is security, and it is the ultimate focus of this paper. In this paper, we investigate all the attacks on different layers of CR network in between 2010-2016, and presented all this information in a refined taxonomy. Also, we provide appropriate explanation about the consequences of these attacks that could be faced by any user or system. At the end, we provide the counter-measures that should be taken to prevent and handle these attacks.