Energy Efficient Approach for In-Network Aggregation in Wireless Sensor Networks
The term Wireless Sensor Network (WSN) is nothing but collection of small sensor devices without any physical infrastructure used for communication. The communication in this network is done by radio frequencies and wireless routing. In WSN, data aggregation is main task which is used to collect information from sensor nodes on behalf of sink node. In-network aggregation is nothing but global process of gathering and routing information through a multi hop network, processing data at intermediate nodes with the objective of reducing resource consumption (in particular energy), thereby increasing network lifetime.