NS2 based advanced routing model for cognitive radio networks from dynamic spectrum management perception

Effective utilization of the unused wireless spectrum is still a challenge from spectrum management perspective. A dynamic spectrum access network enables fast deployment of new wireless technologies by effectively utilizing the available spectrum. Cognitive radio network (CRN) has been proposed to use wireless networks to communicate via dynamic channels via dynamic spectrum access techniques. Routing related issue in CRN is not addressed efficiently because of fluctuating nature of available spectrum. In this paper, a routing model named Dynamic Spectrum Management Cognitive Radio Routing Model (DSMCRN) for cognitive radio ad-hoc networks is proposed and implemented in NS2. The performance of the proposed model is validated by observing improvement in overall network throughput and channel utilization of available spectrum.