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21st International Conference on Advanced Information Networking and Applications Workshops (AINAW'07)
Energy Efficient Spatial Query Processing in Wireless Sensor Networks
Niagara Falls, Ontario, Canada
May 21-May 23
ISBN: 0-7695-2847-3
Kyungseo Park, University of Texas at Arlington, USA
Byoungyong Lee, University of Texas at Arlington, USA
Ramez Elmasri, University of Texas at Arlington, USA
Because a sensor network depends on limited battery power, energy saving is important to increase the sensor network lifespan. We propose semi-distributed spatial query indexing structure that disseminates a query into the network and retrieves data energy efficiently using a localized tree building algorithm. We also propose a sectioned tree index, which divides the network area into several squares and each square has a local index subtree organized within that square. Local trees are interconnected to form one big tree in the network. Local trees are also built based on any algorithm that is energy consumption aware at each sub-root node in a locally centralized way. We use an existing two dimensional indexing technique for energy efficient query dissemination. We show that our proposed scheme is energy efficient for query and data processing heuristically. Our proposed scheme, sectioned tree, is finally simulated in sparse and dense networks to show the energy saving for query and data processing in the sensor network.
Citation:
Kyungseo Park, Byoungyong Lee, Ramez Elmasri, "Energy Efficient Spatial Query Processing in Wireless Sensor Networks," ainaw, vol. 2, pp.719-724, 21st International Conference on Advanced Information Networking and Applications Workshops (AINAW'07), 2007
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