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Positioning Based on Factor Graphs

EURASIP Journal on Advances in Signal Processing volume 2007, Article number: 041348 (2007) Cite this article

Abstract

This paper covers location determination in wireless cellular networks based on time difference of arrival (TDoA) measurements in a factor graphs framework. The resulting nonlinear estimation problem of the localization process for the mobile station cannot be solved analytically. The well-known iterative Gauss-Newton method as standard solution fails to converge for certain geometric constellations and bad initial values, and thus, it is not suitable for a general solution in cellular networks. Therefore, we propose a TDoA positioning algorithm based on factor graphs. Simulation results in terms of root-mean-square errors and cumulative density functions show that this approach achieves very accurate positioning estimates by moderate computational complexity.

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Authors and Affiliations

  1. German Aerospace Center (DLR), Institute of Communications and Navigation, Oberpfaffenhofen, Wessling, 82234, Germany

    Christian Mensing & Simon Plass

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  1. Christian Mensing
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  2. Simon Plass
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Correspondence to Christian Mensing.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://doi.org/creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Mensing, C., Plass, S. Positioning Based on Factor Graphs. EURASIP J. Adv. Signal Process. 2007, 041348 (2007). https://doi.org/10.1155/2007/41348

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  • DOI: https://doi.org/10.1155/2007/41348

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