International Journal of Computer Applications
Wireless Sensor Networks (WSNs) consist of sensor nodes. It is a collection of wild number of low cost device constraint sensor nodes that communicates using wireless medium and they are small in size, low battery power and limited processing capability. This restraint of low electricity power of a sensor node and limited energy capability makes the wireless sensor network failure. A data aggregation is very important techniques in wireless sensor networks and it reduces the energy consumption by eliminating redundancy. In WSNs, sensor nodes are resources constrained in memory, data sensing, battery power and communication capability.