Multi-query Optimization for Sensor Networks [chapter]

Niki Trigoni, Yong Yao, Alan Demers, Johannes Gehrke, Rajmohan Rajaraman
2005 Lecture Notes in Computer Science  
The widespread dissemination of small-scale sensor nodes has sparked interest in a powerful new database abstraction for sensor networks: Clients "program" the sensors through queries in a high-level declarative language permitting the system to perform the low-level optimizations necessary for energy-efficient query processing. In this paper we consider multi-query optimization for aggregate queries on sensor networks. We develop a set of distributed algorithms for processing multiple queries
more » ... hat incur minimum communication while observing the computational limitations of the sensor nodes. Our algorithms support incremental changes to the set of active queries and allow for local repairs to routes in response to node failures. A thorough experimental analysis shows that our approach results in significant energy savings, compared to previous work.
doi:10.1007/11502593_24 fatcat:hrztrhmhk5hutgps645o3jhcjy