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Prediction Based Quantile Filter for Top-k Query Processing in Wireless Sensor Networks

  • Hui Zhang
  • Jiping Zheng
  • Qiuting Han
  • Baoli Song
  • Haixiang Wang
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7996)

Abstract

Processing top-k queries in energy-efficient manner is an important topic in wireless sensor networks. It can keep sensor nodes from transmitting redundant data to base station by filtering methods utilizing thresholds on sensor nodes, which decreases the communication cost between the base station and sensor nodes. Quantiles installed on sensor nodes as thresholds can filter many unlikely top-k results from transmission for saving energy. However, existing quantile filter methods consume much energy when getting the thresholds. In this paper, we develop a new top-k query algorithm named QFBP which is to get thresholds by prediction. That is, QFBP algorithm predicts the next threshold on a sensor node based on historical information by AutoregRessive Integrated Moving Average models. By predicting using ARIMA time series models, QFBF can decrease the communication cost of maintaining thresholds. Experimental results show that our QFBP algorithm is more energy-efficient than existing quantile filter algorithms.

Keywords

Wireless Sensor Networks top-k Quantile Filter Time Series ARIMA 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Hui Zhang
    • 1
  • Jiping Zheng
    • 1
    • 2
  • Qiuting Han
    • 1
  • Baoli Song
    • 1
  • Haixiang Wang
    • 1
  1. 1.Department of Computer Science and TechnologyNanjing University of Aeronautics and AstronauticsP.R. China
  2. 2.State Key Laboratory for Novel Software TechnologyNanjing UniversityP.R.China

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