IMPLEMENTATION OF NETWORK SECURITY BASED DATA HAULING BY COLLABORATIVE SPECTRUM SENSING IN COGNITIVE RADIO NETWORK

Cognitive Radio has been proposed as a solution to alleviate the increasing demand for Radio spectrum. Collaborative Spectrum Sensing (CSS) can be used to increase the pursuit of Spectrum holes efficiently. But CSS doesn't bother about the network security. Hence.., Energy efficient collaborative spectrum sensing (EE-CSS) protocol based on trust and Reputation management is proposed. Trust and reputation management system (TRMS) have been proposed to combat malicious behavior in CRN.TRM unit Calculates the Trust Value for each Secondary User's and find out the attacker nodes and drops them out from the network. EE-CSS protocol improves the Energy Efficiency by Reducing the Total Number of Local decisions i.e. sensed energy level, between secondary users and its Fusion Centre. Since each sensing report requires energy for transmission, processing and receiving it must be reduced to improve energy efficiency. This CR Network is subjected to two varieties of routing protocols such as AODV and Hybrid Routing Algorithm. Finally the graphical result shows that the Energy consumption, Performance Delay in EE-CSS can be much lowered compared to Traditional CSS method.