Thresholded range aggregation in sensor networks

Zhifeng Lin, Man Lung Yiu, Nikos Mamoulis

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The recent advances in wireless sensor technologies (e.g., Mica, Telos motes) enable the economic deployment of lightweight sensors for capturing data from their surrounding environment, serving various monitoring tasks, like forest wildfire alarming and volcano activity. We propose a novel query called thresholded range aggregate query (TRA), which retrieves the IDs of the sensors for which the average measurement in their neighborhood exceeds a user-given threshold. This query provides results that they are robust against individual sensor abnormality, and yet precisely summarize the sensors' status in each local region. In order to process the (snapshot) TRA query, we develop energy-efficient protocols based on appropriate operators and filters in sensor nodes. The design of these operators and filters is non-trivial, due to the fact that each sensor measurement influences the actual results of other nodes in its neighborhood region. Furthermore, we extend our protocols for continuous evaluation of the TRA query. Experimental results show that our proposed solutions indeed offer substantial energy savings for both real and synthetic sensor networks.
Original languageEnglish
Title of host publicationProceedings - 2009 10th International Conference on Mobile Data Management
Subtitle of host publicationSystems, Services and Middleware, MDM 2009
Pages162-171
Number of pages10
DOIs
Publication statusPublished - 5 Oct 2009
Externally publishedYes
Event2009 10th International Conference on Mobile Data Management: Systems, Services and Middleware, MDM 2009 - Taipei, Taiwan
Duration: 18 May 200920 May 2009

Conference

Conference2009 10th International Conference on Mobile Data Management: Systems, Services and Middleware, MDM 2009
CountryTaiwan
CityTaipei
Period18/05/0920/05/09

ASJC Scopus subject areas

  • Engineering(all)

Cite this