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Many researches are going on to improve the routing, control the topology, reduce the energy consumption, improve quality of service and to establish a secured routing. Among these energy conservation is one of the vital factor deciding up the life time of the network. There are many existing works carried out for power-aware routing. Each of them is concentrating on individual factors like controlling transmission range, reducing power distribution among nodes, using directional antennas and controlling mobility topology. But no work is done that covers all the above factors. The proposed work is based on the idea of combining the important factors of energy aware routing like controlling topology, reducing power distribution and adapting variable transmission range. So it is a hybrid approach for saving power in the mobile ad hoc networks. The proposed model of MANET first insists on identifying the dominating set of nodes and based on the controlled topology, power aware routing is carried on. In this case the node mobility is completely neglected. Then a dynamic topology is considered and the dominating set is identified for the same. Then the power distribution is taken into account to carry on the routing. Finally a variable transmission range of the nodes is considered to implement the power-aware routing. In each of the cases the network parameters like throughput, bandwidth, number of hops, distance-hop energy are evaluated and analyzed.
