A Data Storage Method Based on Multilevel Mapping Index in Wireless Sensor Networks

Limited response time and energy are important metrics in the wireless sensor networks, and coexistence of ad hoc queries and periodical queries is also very important. This paper proposes a data storage method based on multi-level mapping index, and integrates responding time constraints of periodical queries and ad hoc query. It divides the whole network into levels, builds data index in every level, as the same time considers multi-attributes, and adopts different data storage methods in different levels. The experiments express that this multilevel mapping index data storage method can save a great deal of energy and satisfy the response time, and support the mixed query types.