A Comparative Analysis of Data Aggregation Based Routing Protocols Hierarchies and Comparing Secure Data Aggregation Protocols in Wireless Sensor Networks

Sensor nodes deployed in Wireless Sensor Networks (WSNs) are battery powered. It operates at low voltage. The main challenge in WSNs is to reduce energy consumption so that it increases the lifetime of the sensor nodes. The goal is achieved by using data aggregation technique and also by selecting the appropriate routing strategy. Sensor nodes are commonly arranged in unmanned location; the security of data plays another important role. In order to provide reliable data to the destination, there are various approaches designed for security. In this paper, we analyzed the various existing approaches for data routing, data aggregation and data security.