Optimum Threshold for Indoor UWB ToA-Based Ranging

Marzieh DASHTI; Mir GHORAISHI; Katsuyuki HANEDA; Jun-ichi TAKADA; Kenichi TAKIZAWA

doi:10.1587/transfun.E94.A.2002

Optimum Threshold for Indoor UWB ToA-Based Ranging

Marzieh DASHTI, Mir GHORAISHI, Katsuyuki HANEDA, Jun-ichi TAKADA, Kenichi TAKIZAWA

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This paper proposes a method for setting the threshold for ultra-wide-band (UWB) threshold-based ranging in indoor scenarios. The optimum threshold is derived based on the full analysis of the ranging error, which is equivalent to the probability of correct detection of first arriving signal in time-based ranging techniques. It is shown that the probability of correct detection is a function of first arriving signal, which has variations with two independent distributions. On the one hand, the first arriving signal varies in different positions with the same range due to multipath interference and on the other, it is a function of distance due to free space path-loss. These two distributions are considered in the derivation of the ranging error, based on which the optimum threshold is obtained. A practical method to derive this threshold is introduced based on the standard channel model. Extensive Monte Carlo simulations, ray-tracing simulations and ranging measurements confirm the analysis and the superior performance of the proposed threshold scheme.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E94-A No.10 pp.2002-2012

Publication Date: 2011/10/01

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Online ISSN: 1745-1337

DOI: 10.1587/transfun.E94.A.2002

Type of Manuscript: PAPER

Category: Spread Spectrum Technologies and Applications

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Marzieh DASHTI, Mir GHORAISHI, Katsuyuki HANEDA, Jun-ichi TAKADA, Kenichi TAKIZAWA, "Optimum Threshold for Indoor UWB ToA-Based Ranging" in IEICE TRANSACTIONS on Fundamentals, vol. E94-A, no. 10, pp. 2002-2012, October 2011, doi: 10.1587/transfun.E94.A.2002.
Abstract: This paper proposes a method for setting the threshold for ultra-wide-band (UWB) threshold-based ranging in indoor scenarios. The optimum threshold is derived based on the full analysis of the ranging error, which is equivalent to the probability of correct detection of first arriving signal in time-based ranging techniques. It is shown that the probability of correct detection is a function of first arriving signal, which has variations with two independent distributions. On the one hand, the first arriving signal varies in different positions with the same range due to multipath interference and on the other, it is a function of distance due to free space path-loss. These two distributions are considered in the derivation of the ranging error, based on which the optimum threshold is obtained. A practical method to derive this threshold is introduced based on the standard channel model. Extensive Monte Carlo simulations, ray-tracing simulations and ranging measurements confirm the analysis and the superior performance of the proposed threshold scheme.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E94.A.2002/_p

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@ARTICLE{e94-a_10_2002,
author={Marzieh DASHTI, Mir GHORAISHI, Katsuyuki HANEDA, Jun-ichi TAKADA, Kenichi TAKIZAWA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Optimum Threshold for Indoor UWB ToA-Based Ranging},
year={2011},
volume={E94-A},
number={10},
pages={2002-2012},
abstract={This paper proposes a method for setting the threshold for ultra-wide-band (UWB) threshold-based ranging in indoor scenarios. The optimum threshold is derived based on the full analysis of the ranging error, which is equivalent to the probability of correct detection of first arriving signal in time-based ranging techniques. It is shown that the probability of correct detection is a function of first arriving signal, which has variations with two independent distributions. On the one hand, the first arriving signal varies in different positions with the same range due to multipath interference and on the other, it is a function of distance due to free space path-loss. These two distributions are considered in the derivation of the ranging error, based on which the optimum threshold is obtained. A practical method to derive this threshold is introduced based on the standard channel model. Extensive Monte Carlo simulations, ray-tracing simulations and ranging measurements confirm the analysis and the superior performance of the proposed threshold scheme.},
keywords={},
doi={10.1587/transfun.E94.A.2002},
ISSN={1745-1337},
month={October},}

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TY - JOUR
TI - Optimum Threshold for Indoor UWB ToA-Based Ranging
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2002
EP - 2012
AU - Marzieh DASHTI
AU - Mir GHORAISHI
AU - Katsuyuki HANEDA
AU - Jun-ichi TAKADA
AU - Kenichi TAKIZAWA
PY - 2011
DO - 10.1587/transfun.E94.A.2002
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E94-A
IS - 10
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - October 2011
AB - This paper proposes a method for setting the threshold for ultra-wide-band (UWB) threshold-based ranging in indoor scenarios. The optimum threshold is derived based on the full analysis of the ranging error, which is equivalent to the probability of correct detection of first arriving signal in time-based ranging techniques. It is shown that the probability of correct detection is a function of first arriving signal, which has variations with two independent distributions. On the one hand, the first arriving signal varies in different positions with the same range due to multipath interference and on the other, it is a function of distance due to free space path-loss. These two distributions are considered in the derivation of the ranging error, based on which the optimum threshold is obtained. A practical method to derive this threshold is introduced based on the standard channel model. Extensive Monte Carlo simulations, ray-tracing simulations and ranging measurements confirm the analysis and the superior performance of the proposed threshold scheme.
ER -