Sensor synchronization for energy efficient multiple object tracking

Fan Zhou*, Goce Trajcevski, Besim Avci, Peter I Scheuermann

*Corresponding author for this work

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

2 Scopus citations

Abstract

This work addresses the problem of synchronizing the sensors involved in the task of multiple object tracking (MOT) in Wireless Sensor Networks (WSN). We aim at reducing the overall in-network energy consumption along with bounding the uncertainty regarding targets' locations in WSN. Designing energy efficient scheduling mechanism is a challenge in WSN tracking scenarios due to the limitations on target's movement prediction, and lack of global network knowledge. The main observation of this work is that task conflicts and channel congestion preclude the utilization of the nodes shared by common tracking tasks, which may result in poor Quality of Tracking (QoT) and/or increasing target ambiguity. In order to tackle this problem, we propose a lightweight sensor scheduling policy - Synchronization based Sampling Reduction (SSR), which explicitly prunes the redundant measurements in the conflicting nodes without decreasing QoT, through synchronizing the tracking tasks. In addition to conserving the energy by reducing the samplings, SSR also is capable of mitigating the data associating problem in MOT, without requiring any global knowledge about the network. Our experiments demonstrate that SSR can significantly reduce the number of locations sampling, when compared to naïve approach that does not coordinate the nodes involved in multiple object tracking.

Original languageEnglish (US)
Title of host publicationProceedings of 2012 9th IEEE International Conference on Networking, Sensing and Control, ICNSC 2012
Pages139-144
Number of pages6
DOIs
StatePublished - Jul 4 2012
Event2012 9th IEEE International Conference on Networking, Sensing and Control, ICNSC 2012 - Beijing, China
Duration: Apr 11 2012Apr 14 2012

Publication series

NameProceedings of 2012 9th IEEE International Conference on Networking, Sensing and Control, ICNSC 2012

Other

Other2012 9th IEEE International Conference on Networking, Sensing and Control, ICNSC 2012
CountryChina
CityBeijing
Period4/11/124/14/12

ASJC Scopus subject areas

  • Computer Networks and Communications

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