Interference and Delay Aware Routing Algorithm for Cognitive Radio Sensor Networks

Cognitive Radio Sensor Networks (CRSN) consists of cognitive devices capable of changing their transmission parameters on a real time, based on the spectrum available in the environment. These capabilities brings-up the possibility of designing flexible and dynamic spectrum strategies with the purpose of opportunistically accessing the portion of the spectrum temporarily vacated by the primary users, due to this there will be increased complexity in the design of communication protocols. The characteristic of CRSN that is opportunistic access of spectrum raises interference problem in the communication networks. On account of this problem the performance of the network will be degraded like increase in consumption of energy, switching delay, reducing the reliability of a network. To overcome all these challenges we developed an interference and delay aware routing algorithm which selects a best path to route the data from source to the destination.