Processing multiple aggregation queries in geo-sensor networks

Ken C.K. Lee, Wang Chien Lee, Baihua Zheng, Julian Winter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

To process aggregation queries issued through different sensors as access points in sensor networks, existing algorithms handle queries independently and perform in-network aggregation only at the query time. As a result of ad-hoc and independent execution of queries, no partial result is sharable and reusable among the queries. Consequently, scarce sensor network resources can be easily overconsumed, particularly, those sensors commonly accessed by queries. In this paper, we address this issue by examining strategies to maintain Materialized In-Network Views (MINVs) that pre-compute and store commonly used aggregation results in the sensor network. With MINVs, aggregated sensed results for some spatial regions are available and sharable to queries. Thus, the number of sensor accesses is greatly reduced. Through simulations, we validate the effectiveness of proposed strategies.

Original languageEnglish (US)
Title of host publicationDatabase Systems for Advanced Applications - 11th International Conference, DASFAA 2006, Proceedings
PublisherSpringer Verlag
Pages20-34
Number of pages15
ISBN (Print)3540333371, 9783540333371
DOIs
StatePublished - 2006
Event11th International Conference on Database Systems for Advanced Applications, DASFAA 2006 - Singapore, Singapore
Duration: Apr 12 2006Apr 15 2006

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3882 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other11th International Conference on Database Systems for Advanced Applications, DASFAA 2006
Country/TerritorySingapore
CitySingapore
Period4/12/064/15/06

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

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