Monitoring top-k query in wireless sensor networks

Minji Wu*, Jianliang XU, Xueyan Tang, Wang Chien Lee

*Corresponding author for this work

Research output: Chapter in book/report/conference proceedingConference proceedingpeer-review

57 Citations (Scopus)


Top-k monitoring is important to many wireless sensor applications. This paper exploits the semantics of top-k query and proposes a novel energy-efficient monitoring approach, called FILA. The basic idea is to install a filter at each sensor node to suppress unnecessary sensor updates. The correctness of the top-k result is ensured if all sensor nodes perform updates according to their filters. We show via simulation that FILA outperforms the existing TAGbased approach by an order of magnitude.

Original languageEnglish
Title of host publicationProceedings of the 22nd International Conference on Data Engineering, ICDE '06
Number of pages1
Publication statusPublished - 2006
Event22nd International Conference on Data Engineering, ICDE '06 - Atlanta, GA, United States
Duration: 3 Apr 20067 Apr 2006

Publication series

NameProceedings - International Conference on Data Engineering
ISSN (Print)1084-4627


Conference22nd International Conference on Data Engineering, ICDE '06
Country/TerritoryUnited States
CityAtlanta, GA

Scopus Subject Areas

  • Software
  • Signal Processing
  • Information Systems


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