Role of Sensor Network to Save Energy for Storage Nodes

In sensor networks the data storage and query reply are very important for archiving future information retrieval. Storage nodes are used to reduce heavy load and data collected while transmitting the data to the central place for archiving. The Storage nodes have much larger capacity than regular sensors .They do not send out anything until queries arrive. In query reply the user needs data, submits queries to the sink (base station), the sink diffuses queries to the storage nodes, based on the query description the storage nodes reply back to the sink. The improper placement of storage nodes maximizing energy cost associated with raw data transfers, query diffusion and query replies. The objective is to minimize the total energy cost for gathering data to the storage nodes with the proper placement of storage nodes and provide user-to-sink security.