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Performance analysis of PUE attacker on Dynamic Spectrum access in cognitive radio

Spectrum inefficiency is the major problem in the wireless technology. To negotiate this problem the technology called cognitive radio is introduced which is based on software defined radio (SDR). It additionally senses the environment with the help of secondary user to utilize the licensed band when primary user is not accessing the spectrum. Security and privacy are immeasurable challenges in all types of wired and wireless networks. These challenges are of even greater importance in CRnetworks.

The unique characteristic of these networks and the application purposes, they serve make them attractive target for intrusions and other attacks. Primary user emulation attack is one of the major security threats in spectrum sensing. To shrink this we have distinguished various defense techniques which can conflict the PUE attacks.

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