International Journal for Innovative Research in Science and Technology (IJIRST)
In this paper, the authors introduce several energy efficient routing protocols in sensor networks. These protocols aim to prolong the overall lifetime of network by reducing the energy consumption of nodes. Transfer of gathering information from the sensing field to the base station must be done in proficiently to sustain the network longer. Clustering is one of the process to achieve this goal. Cluster based hierarchical routing protocol have proven to be effective in management of network topology, minimize the energy level, data aggregation and so on.