Threats advancement in primary user emulation attack and Spectrum Sensing Data Falsification (SSDF) attack in Cognitive Radio Network (CRN) for 5G wireless network environment

Primary user emulation (pue) attack and spectrum sensing data falsification (ssdf) attack on data fusion centre and attack on common control channel (ccc) is a serious security problems and need to be addressed in cognitive radio network environment. we are reviewing the recent advances of threats for the future 5th generation (5g) wireless radio network from these attacks. several existing security schemes have been proposed and discussed to overcome these attacks. we propose new security scheme that able to mitigate the attacks and provide security solutions. this scheme intended to mitigate the threats from the attacks in crn and improve the future 5g network security.