Data storage in sensor networks for multi-dimensional range queries

  • Authors:
  • Ji Yeon Lee;Yong Hun Lim;Yon Dohn Chung;Myoung Ho Kim

  • Affiliations:
  • E-Government Team, National Computerization Agency, Seoul, Korea;Home Platform Group, Samsung Electronics, Seoul, Korea;Department of Computer Engineering, Dongguk University, Seoul, Korea;Department of Computer Science, KAIST, Daejon, Korea

  • Venue:
  • ICESS'05 Proceedings of the Second international conference on Embedded Software and Systems
  • Year:
  • 2005

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Abstract

In data-centric sensor networks, various data items, such as temperature, humidity, pressure and so on, are sensed and stored in sensor nodes. As these attributes are mostly scalar values and inter-related, multi-dimensional range queries are very useful. However, the previous work on range query processing in sensor networks did not consider overall network lifetime. To prolong network lifetime and support multi-dimensional range queries, we propose a dynamic data placement method for multi-dimensional data, where data space is divided into equal-sized regions and placed over sensor nodes in a dynamic way. Through experiments, we show the efficiency of the proposed method compared with the previous work.