Multiple Sink Data Aggregation

In-network aggregation is a technique in which queries are propagated in the network and in response phase information is processed at aggregator node only. In wireless sensor network, nodes are deployed in a particular area for sensing certain parameters like sound vibration, humidity, temperature etc. Information sensed by nodes may be highly correlated and redundant. It is not energy efficient to send correlated, redundant data to the sink. In wireless sensor network, correlation (spatial or temporal or spatiotemporal) among sensor readings may be exploited to reduce battery consumption and increase network lifetime. In this paper we propose an approach that handles multiplicity of sinks and shares information among sinks.