Abstract: Wireless sensor network is a collection of large number of sensor nodes which are deployed in an environment measuring various parameters like humidity, temperature and pressure. In wireless sensor networks, routing of data in non-aggregated manner can lead to more energy consumption. To have energy conservation, aggregation of data is effective as it raise data accuracy, remove data redundancy and also reduce communication load. In this paper we have reviewed DRINA (Data Routing for In-Network Aggregation) which is a cluster based approach for data aggregation. It reduces cost of communication and saves energy consumption by building of routing tree, increasing overlapping routes and removing redundant data.
Keywords: DRINA, wireless sensor networks, in-network aggregation, energy consumption, routing tree.