In this paper we present a full performance analysis of an energy conserving routing protocol in mobile ad hoc network, named EM-AODV (Energy Multi-path Ad-hoc On-demand Distance Vector routing). EM-AODV is a reactive routing protocol which combines two mechanisms used in the basic AODV protocol. AODV and most of the on demand ad hoc routing protocols use single route reply along reverse path. Rapid change of topology causes that the route reply could not arrive to the source node, i.e. after a source node sends several route request messages, the node obtains a reply message, and this increases in power consumption. To avoid these problems, we propose a mechanism which tries multiple route replies. The second mechanism proposes a new adaptive approach which seeks to incorporate the metric "residual energy " in the process route selection, Indeed the residual energy of mobile nodes were considered when making routing decisions. The results of simulation show that protocol EM-AODV answers better energy conservation

No abstract