earticle

영어

As the use of wireless applications is increasing every day; it results into shortage of limited available spectrum. Licensed spectrum is unutilized and unlicensed spectrum is overcrowded, so to increase the efficiency of allocated spectrum and to fulfill the need of unlicensed spectrum, CRN is proposed. Some routing protocols are designed for wireless communication keeping in mind that all nodes are cooperating. So this approach can solve the problem of spectrum scarcity. However due to the flexibility of such network, it is vulnerable to many security threats. Jamming attack is one of the most popular security threats which cause denial of service in the network. Various solutions are available in the literature to deal with jamming attack but still there are some open challenges in jamming attack. In this paper various anti-jamming techniques and analyze the open issues of jamming which are still there in the cognitive radio network. An anti-jamming technique is proposed in this paper to deal with the open issues. Simulation is done in MATLAB-2013 and results show that proposed method performs well.