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2010
ACM

Energy-efficient processing of spatio-temporal queries in wireless sensor networks

8 years 6 months ago
Energy-efficient processing of spatio-temporal queries in wireless sensor networks
Research on Moving Object Databases (MOD) has resulted in sophisticated query mechanisms for moving objects and regions. Wireless Sensor Networks (WSN) support a wide range of applications that track or monitor moving objects. However, applying the concepts of MOD to WSN is difficult: While MOD tend to require precise object positions, the information acquired in WSN may be incomplete or inaccurate. This may be because of limited detection ranges, node failures or detection mechanisms that only determine if an object is in the vicinity of a node, but not its exact position. In this paper, we study the processing of spatiotemporal queries in WSN. First, we adapt the models used in MOD to WSN while keeping their semantical depth. Second, we propose two approaches for processing such queries in WSN in-network instead of collecting all data at the base station. Our experimental evaluations using simulation as well as a Sun SPOT deployment show that our measures reduce communication by up ...
Markus Bestehorn, Klemens Böhm, Erik Buchmann
Added 02 Mar 2011
Updated 02 Mar 2011
Type Journal
Year 2010
Where GIS
Authors Markus Bestehorn, Klemens Böhm, Erik Buchmann, Stephan Kessler
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