International Journal of Scientific & Technology Research
Low Energy Adaptive Reliable Routing (LEARR) finds routes which require least amount of energy for reliable packet transfer in ad hoc networks. It defines the energy cost of packet forwarding by a node as the fraction of remaining battery energy which is consumed by a node to forward a packet. It includes the energy consumed for retransmission of the packet as well, when the packet or its acknowledgment is lost. It is found that LEARR can effectively reduce the energy consumption of nodes and balance the traffic load among them.