Secure Distance Based Improved Leach Routing to Prevent Puea in Cognitive Radio Network

Routing in cognitive radio networks (CRNs) faces numerous limitations in misbehaving activities and secure the routing requests and reply messages. In this research work, Secure Distance based Improved LEACH Routing (SDILR) protocol is presented to avoid the primary user emulation attack (PUEA) in CRN. Initially, the nodes in the cognitive radio network are clustered by using distance based improved Low- energy adaptive clustering hierarchy (ILEACH). After the formation of clusters, secure routing is presented using support value based signature authentication to avoid PUEA. The proposed secure ILEACH routing results the secure data sharing through the primary user nodes PUEA.