Artikel in Tagungsband INPROC-2007-35

Bibliograph.
Daten
Farrell, Tobias; Cheng, Reynold; Rothermel, Kurt: Energy-Efficient Monitoring of Mobile Objects with Uncertainty-Aware Tolerances.
In: Desai, Bipin C. (Hrsg); Barker, Ken (Hrsg): Proceedings of the 11th International Database Engineering and Applications Symposium (IDEAS 2007); Banff, Canada, September 6-8, 2007.
Universität Stuttgart : Sonderforschungsbereich SFB 627 (Nexus: Umgebungsmodelle für mobile kontextbezogene Systeme).
S. 129-140, englisch.
IEEE Computer Society, September 2007.
ISBN: 0-7695-2947-X; DOI: 10.1109/IDEAS.2007.4318097.
Artikel in Tagungsband (Konferenz-Beitrag).
CR-Klassif.C.2 (Computer-Communication Networks)
Kurzfassung

In location-based services, continuous queries are often employed to monitor the locations of mobile ob-jects that are determined by sensing devices like GPS receivers. Due to limited battery resources, it is impor-tant for these objects to acquire and report location data only if necessary. We study how these energy-consuming operations can be reduced with a con-trolled impact on query accuracy of continuous range queries (CRQs). Specifically, we develop uncertainty-aware tolerances, which are user-defined error bounds that provide correctness guarantees, with considera-tion of different sources of data uncertainty: sensing uncertainty, sampling uncertainty, and communication delay. Novel algorithms are developed to control carefully when an object should acquire and update a location, while satisfying these tolerances. Extensive simulations validate the effectiveness of our methods.

Volltext und
andere Links
Online (IEEE Xplore)
KontaktTobias.Farrell@ipvs.uni-stuttgart.de
Abteilung(en)Universität Stuttgart, Institut für Parallele und Verteilte Systeme, Verteilte Systeme
Projekt(e)SFB-627, B3 (Universität Stuttgart, Institut für Parallele und Verteilte Systeme, Verteilte Systeme)
SFB-627, B5 (Universität Stuttgart, Institut für Parallele und Verteilte Systeme, Verteilte Systeme)
Eingabedatum28. August 2007
   Publ. Institut   Publ. Informatik