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