Cognitive Radio Network: Security and Reliability trade-off - Status, Challenges, and Future trend

The security of a cognitive radio network (CRN) is one of the most important features that should receive great attention, especially with the continuing developments in wireless communication systems. Because the security standards for cognitive radio networks (CRN) are the same as those for public wireless networks. Many attacks affect the security and reliability of the network and the emergence of many challenges, as these attacks are classified on the basis of cognitive radio network layers so that there are different types of attacks for each layer. Security is the most important issue that researchers must address. This paper addresses the review of the literature in this section the different types of approaches the researchers used to provide security for cognitive radio networks are explained. Bearing in mind that security is one of the most important factors that must be focused on and given utmost importance in dealing with cognitive radio networks. Also, this paper deals with a table showing the previous works as it illustrates this table Status, Challenges, and future trends.