A Cluster-Based Data Storage Management Protocol in Wireless Sensor Networks

In this paper, we present a novel cluster-based data storage (CBDS) management protocol addressing environment monitoring application in wireless sensor networks, where the query for data is not real-time and the sensing data must be stored for future analysis. Since the amount of data generated by sensor nodes is much greater than the nodes´ available storage, the CBDS need to reduce the data size by clustering and aggregating the raw data on temporal and spatial dimensions according to the observer´s requirement. This strategy can store the data for long time. It provides significant saving in the size of stored data, which makes the WSN to work for longer time period without exhausting storage space. Furthermore, CBDS performs load balancing of energy power and storage resource (ICCT´06).