Paper Survey of Different Energy Efficient Schemes in Wireless Ad hoc Network

Energy efficient routing may be the most important design criteria for Mobile Ad hoc Network (MANET), since mobile nodes will be powered by batteries with limited capacity. Power failure of a mobile node not only affects the node itself but also its ability to forward packets on behalf of others and thus the overall network lifetime. This paper addresses the problem of energy-efficient and aware data routing strategies within the Wireless Ad hoc Networks using directional antennas and considers the battery power of each node as an important criteria while determining the route for data packet transmission. Energy depletion of nodes in Wireless Ad hoc Networks is one of the prime concerns for their sustained operation. Conventional routing strategies usually focus on minimizing the number of hops or minimizing route errors from the source node to the destination node. But they do not usually focus on the energy depletion of the nodes. Thus, the same node may be selected repeatedly, thereby causing its early depletion in energy. In this survey the research has done on the basis of efficient energy consumption and if a node in the network has heavily depleted its battery power, then an alternative node would be selected for routing so that not only the power of each node is used optimally.