Energy efficient routing in cluster based wireless sensor networks

Wireless Sensor Network (WSN) is severely energy constrained. Selecting an energy efficient routing is very important for such network. In this paper, we present an approach for routing in wireless sensor network to minimize the energy consumption to increase active lifetime of the network. Our approach takes the minimum energy route for transmitting data from a node to a fixed base station through a cluster head. We calculate the distance between neighboring clusters using Hausdorff distance. We evaluate energy consumed to transmit a `k' bit message to all the neighbors from source cluster. Comparing the entire route we select the minimum energy route to transmit the data to the base station. Simulation result shows that our scheme achieves significant improvement in terms of energy efficiency when compared with some of the established routing protocols in the same category.