A Data Storage Method Based on Query Processing Region in Wireless Sensor Networks

With extensive applications of wireless sensor networks (WSNs), a WSN system with single function such as sea-monitoring and accident succor is expected to supply much more abilities for effective periodic queries or ad hoc queries, because some applications require real-time queries since the results should be returned before deadlines. Meanwhile, efficient data storage technique is always necessary to save energy in the query procedure. For these reasons, we propose a new data storage technique based on query processing region. A query processing region is developed to store the data by using an indexing strategy and to process the queries in real time, and the model for the process of query processing is also built. The simulation results show that this method can process both periodic queries and ad hoc queries with less energy before deadlines.