Krupa A Talwar, Benakappa S M
Routing protocol design is a major issue in the field of Mobile Ad-hoc Networks. Change in topology raises major challenges. Failure of node leads to breakage of link and may cause loss of network resources. A new method is proposed which works in two phases. First phase works based on signal strength based AODV. On failure of first approach, the work shifts to second phase where the system works based on normal AODV. Signal strength AODV works by measuring signal strength between nodes and compares this value with RSSI threshold value. If this value is greater than threshold value, it is accepted for further processing else it is discarded. If a route is not found in first phase, the system will switch to normal AODV that selects the route based on minimum hot count. Simulation results show that IAODV performs better than AODV in terms of packet delivery ratio, throughput, normalized routing load, delay and control overhead.