Node State and Backup Reverse Path Based LAODV Routing Protocol

AODV routing protocol is a classical protocol in Ad Hoc network. The scientists have already conducted the extensive research. In order to perfect the protocol, an improved protocol LAODV is proposed in this paper, which has two improvements. One improvement is that LAODV involves a delayed algorithm based on node state. It adopts a novel delayed broadcast scheme which combines the shortest route selection criterion with the node states including power and traffic load to select the intermediate nodes during the route discovery phase; The other is that a backup reverse path between the intermediate nodes and the source request nodes is established, when the route breaks down, it makes sure that the intermediate node can still work smoothly. By analysing the simulation results of LAODV, the performance is demonstrated.