A on Data Aggregation Survey on Data Aggregation Survey on Data Aggregation Survey on Data Aggregation Techniques Techniques Techniques in WSensor Networks ireless Sensor Networks ireless Sensor Networks ireless Sensor Networks
K. Ruba Soundar · 2013
Wireless sensor networks (WSN) are self organized, low cost and low power utilizing network which senses, calculates and communicates the data. The data collection at sensor nodes consumes a lot of energy and sensor nodes have limited energy. Hence most of the data-aggregation techniques aim to prolong the lifetime of the network by minimizing power consumption and optimized data transmission. In this paper, an extensive survey of various data aggregation techniques in WSN is done by categorizing the techniques as structured, structure-free, flat and hierarchical these techniques are analyzed in terms of energy conservation, network life time, packet delivery ratio, latency and various other parameters. A comparison of these data aggregation techniques is also presented along with their advantages and issues.