Abstract:

Based on AODV, an energy-aware direction-forward routing protocol in ad hoc networks （ED-AODV） is presented. To limit the route request scope, we use the hop count which represents the number of hops to destination to guide RREQ packets toward the destination node. Besides, when the remaining energyof one route node is lower than the warruing value, the node triggers an alarm message to ask the source node to find a new routing path in advance. The load of flooding packets caused by the source nodes can be reduced with the method of direction forwarding the RREQ packets. In the end, several simul  ations are made to validate the performance of our methods and compare with the previous AODV. The result shows we have a larger performance improvement

Key words: ad hoc networks;AODV, direction-forward, remaining energy