A DEFENSIVE APPROACH AGAINST CROSS LAYER ATTACKS IN COGNITIVE RADIO

Abstract

A latest communication technology named “CRN” is a network in which an un-licensed user can use a freed channel in a spectrum band of licensed user without causing interference to the incumbent transmission. Cognitive Radio networks are vulnerable to attacks, as some unwanted user can use this empty channel through attacks and threats. The existing research on security issues in cognitive radio networks mainly focuses on attack and defense in individual network layers. Cross-layer design is a concept introduced to increase network efficiency through information exchange among different layers, has brought revolutionary view change to the networking research community in the past. In this paper, we are working on detecting and defeating attacks in cross layer. .