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Energy-driven detection scheme with guaranteed accuracy

Published: 19 April 2006 Publication History

Abstract

This is our first step towards a holistic investigation of the minimum energy for wireless sensor network (WSN) to perform a specific function. We consider wireless sensor networks that perform an event detection function. Each sensor node will repetitively collect a 1-bit information regarding whether the event occurs or not in its neighborhood. A fusion center will make the decision on whether the event occurs based on the information provided by individual sensor nodes. Traditionally, a centralized scheme requires each sensor node to forward all its observations to the fusion center, which results in large energy in communication. A distributed scheme, on the other hand, allows each sensor node to make its own decision and then send out only its 1-bit decision. This reduces communication energy at the cost of increased processing energy and reduced detection accuracy.We propose a hybrid energy-driven scheme where each sensor node sends out its 1-bit decision if that decision exceeds a pre-determined detection accuracy threshold, and sends out all its observations otherwise. This scheme provides WSN designers the flexibility to balance detection accuracy, sensor density, and energy consumption. We develop the optimal decision rules for this scheme. We also propose methods to calculate the detection accuracy threshold for individual sensor node to guarantee the overall detection accuracy at the fusion center. The simulation results show that the hybrid scheme consumes significantly less energy than both centralized and distributed schemes to achieve the same detection accuracy.

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cover image ACM Conferences
IPSN '06: Proceedings of the 5th international conference on Information processing in sensor networks
April 2006
514 pages
ISBN:1595933344
DOI:10.1145/1127777
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 19 April 2006

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Author Tags

  1. detection accuracy
  2. detection scheme
  3. energy efficiency
  4. wireless sensor networks

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Overall Acceptance Rate 143 of 593 submissions, 24%

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  • (2015)DS-MACJournal of Network and Computer Applications10.1016/j.jnca.2015.09.00758:C(155-164)Online publication date: 1-Dec-2015
  • (2014)Design things for the internet of thingsProceedings of the 2014 IEEE/ACM International Conference on Computer-Aided Design10.5555/2691365.2691449(411-416)Online publication date: 3-Nov-2014
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  • (2011)Detection of an anomalous cluster in a networkThe Annals of Statistics10.1214/10-AOS83939:1Online publication date: 1-Feb-2011
  • (2010)Information quality aware routing in event-driven sensor networksProceedings of the 29th conference on Information communications10.5555/1833515.1833751(1703-1711)Online publication date: 14-Mar-2010
  • (2010)A Study on Vehicle Detection and Tracking Using Wireless Sensor NetworksWireless Sensor Network10.4236/wsn.2010.2202302:02(173-185)Online publication date: 2010
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  • (2009)Energy scaling laws for distributed inference in random fusion networksIEEE Journal on Selected Areas in Communications10.1109/JSAC.2009.09091627:7(1203-1217)Online publication date: 1-Sep-2009
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