Route Selection in MANETs by Intelligent AODV

An important issue for mobile ad hoc network is the routing protocol design. Due to frequent changes in the topology of the network this becomes a major technical challenge. Node failures and link breakages in the network may cause loss of the network resources. In this paper we proposed a method which, works in two phases, first is signal strength based AODV if this approach is not work then it switch to second phase means work like as normal AODV, In signal strength based AODV protocol measures signal strength between nodes and compare with RSSI threshold values if it is greater than threshold value then it is accepted for further processing otherwise it is discarded if it is not find any route between source and destination then it switch to normal AODV which select route on the basis of minimum hop count. The benefit of this scheme is by selecting a strong route to the destination we can increase the lifetime of the network. Simulation results show that IAODV has performance better than AODV routing protocol in terms of the metrics: Packets delivery ratio, throughput, Routing overhead.