Performance Evaluation of AODV Routing Protocol in Cognitive Radio Ad-hoc Network
Shubhangi M. Mahamuni, Vivekanand Mishra · International Journal of Wireless & Mobile Networks · 2011
A cognitive radio is designed for the utilisation of unused frequency.The transmission opportunity of a cognitive node is not guaranteed due to the presence of primary users (PUs).To better characterize the unique features of cognitive radio networks, we propose new routing metrics, including Routing for CRNs using IEEE 802.11 which are the official standards for wireless communication.Routing protocols, for network without infrastructures, have to be developed.These protocols determine how messages can be forwarded, from a source node to a destination node which is out of the range of the former, using other mobile nodes of the network.Routing, which includes for example maintenance and discovery of routes, is one of the very challenging areas in communication.Numerous simulations of routing protocols have been made using different simulators, such as ns-2.The impact of sensing time, route path and mobility in Ad-Hoc networks on connectivity and throughput tested.