Towards Improving Reliability in Cognitive Radio Ad hoc Networks

Abstract: Cognitive Radio Ad hoc Networks (CRAHNs) are the next generation networking technology. Reliability is the major research paradigm in the field of CRAHNs. The proposed work is an extension to AODV routing protocol. This paper proposes a mechanism for improving reliability using Reliable Transmission Algorithm in CRAHNs. The proposed routing mechanism is tested in NS2 simulator. The performance metrics throughput, packet delivery ratio and packets drop are taken into account. Simulation results shows that the proposed routing mechnaism achieves better relaibility than AODV routing protocol.

Keywords: Routing, Cognitive Radio, Networks.