SPECTRUM AWARE ROUTING FOR COGNITIVE RADIO NETWORKS DYNAMICALLY WITH DSA

In Cognitive Radio Networks, the system output is only affected by primary user activity and also by environment factors as interference. The channel selection for cognitive radio networks should not consider channel no activity time and an error rate on the channel. The spectrum channel assignment is important to efficiently use the network resources. The propose Spectrum aware Channel Assignment for radio, channel cognitive radio networks. The result of the performance of channel assignment is evaluated for packet delivery and number of channel switches by varying the number of primary users, number of channels with primary user activity ratio. So the recognizing spectrum aware managed network Cognitive Radios are providing the services in communication level by significantly selecting the spectrum scarcity caused by wrong spectrum selection