Cooperative Simultaneous Localization and Synchronization: A Distributed Hybrid Message Passing Algorithm
Paper in proceedings, 2013

Cooperative sensor self-localization (CSL) in wireless networks usually requires the nodes to be equipped with specific ranging hardware including ultra-wideband or ultrasonic distance sensors. Such designs are not suitable for application in low-cost, low-power sensor networks. Here, we demonstrate how low-cost, low-power, asynchronous sensor nodes can be used to perform CSL (and, simultaneously, distributed synchronization) by means of time-stamped communication without additional ranging hardware. Our method combines a belief propagation message passing algorithm for cooperative simultaneous localization and synchronization (CoSLAS) with a MAC-layer time stamping scheme.We validate the models underlying the CoSLAS algorithm by means of measurements, and we demonstrate that the localization accuracy achieved by our hardware implementation is far better than that corresponding to the time resolution and measurement errors of the hardware.

Author

B. Etzlinger

Johannes Kepler University of Linz (JKU)

Florian Meyer

Vienna University of Technology

A. Springer

Johannes Kepler University of Linz (JKU)

Franz Hlawatsch

Vienna University of Technology

Henk Wymeersch

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

IEEE 8th Sensor Array and Multichannel Signal Processing Workshop, SAM 2014, A Coruna, Spain, 22-25 June 2014

1058-6393 (ISSN)

1978-1982

Cooperative Situational Awareness for Wireless Networks (COOPNET)

European Commission (FP7), 2011-05-01 -- 2016-04-30.

Areas of Advance

Information and Communication Technology

Subject Categories

Signal Processing

DOI

10.1109/ACSSC.2013.6810651

ISBN

978-1-4799-2390-8

More information

Latest update

3/29/2018