Performance Evaluation of Wi-Fi RTT Lateration without Pre-Constructing a Database

Tetsuya MANABE; Kazuya SABA

doi:10.1587/transfun.2022WBP0001

Performance Evaluation of Wi-Fi RTT Lateration without Pre-Constructing a Database

Tetsuya MANABE, Kazuya SABA

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This paper proposes an algorithm for estimating the location of wireless access points (APs) in indoor environments to realize smartphone positioning based on Wi-Fi without pre-constructing a database. The proposed method is designed to overcome the main problem of existing positioning methods requiring the advance construction of a database with coordinates or precise AP location measurements. The proposed algorithm constructs a local coordinate system with the first four APs that are activated in turn, and estimates the AP installation location using Wi-Fi round-trip time (RTT) lateration and the ranging results between the APs. The effectiveness of the proposed algorithm is confirmed by conducting experiments in a real indoor environment consisting of two rooms of different sizes to evaluate the positioning performance of the algorithm. The experimental results showed the proposed algorithm using Wi-Fi RTT lateration delivers high smartphone positioning performance without a pre-constructed database or precise AP location measurements.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E106-A No.5 pp.765-774

Publication Date: 2023/05/01

Publicized: 2022/12/02

Online ISSN: 1745-1337

DOI: 10.1587/transfun.2022WBP0001

Type of Manuscript: Special Section PAPER (Special Section on Intelligent Transport Systems and Wideband Systems)

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Authors

Tetsuya MANABE
Saitama University
Kazuya SABA
Saitama University

Keyword

Wi-Fi RTT, WLAN RTT, round-trip time, ranging, lateration, local coordinate system, location configuration information report, LCI report

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Tetsuya MANABE, Kazuya SABA, "Performance Evaluation of Wi-Fi RTT Lateration without Pre-Constructing a Database" in IEICE TRANSACTIONS on Fundamentals, vol. E106-A, no. 5, pp. 765-774, May 2023, doi: 10.1587/transfun.2022WBP0001.
Abstract: This paper proposes an algorithm for estimating the location of wireless access points (APs) in indoor environments to realize smartphone positioning based on Wi-Fi without pre-constructing a database. The proposed method is designed to overcome the main problem of existing positioning methods requiring the advance construction of a database with coordinates or precise AP location measurements. The proposed algorithm constructs a local coordinate system with the first four APs that are activated in turn, and estimates the AP installation location using Wi-Fi round-trip time (RTT) lateration and the ranging results between the APs. The effectiveness of the proposed algorithm is confirmed by conducting experiments in a real indoor environment consisting of two rooms of different sizes to evaluate the positioning performance of the algorithm. The experimental results showed the proposed algorithm using Wi-Fi RTT lateration delivers high smartphone positioning performance without a pre-constructed database or precise AP location measurements.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2022WBP0001/_p

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@ARTICLE{e106-a_5_765,
author={Tetsuya MANABE, Kazuya SABA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Performance Evaluation of Wi-Fi RTT Lateration without Pre-Constructing a Database},
year={2023},
volume={E106-A},
number={5},
pages={765-774},
abstract={This paper proposes an algorithm for estimating the location of wireless access points (APs) in indoor environments to realize smartphone positioning based on Wi-Fi without pre-constructing a database. The proposed method is designed to overcome the main problem of existing positioning methods requiring the advance construction of a database with coordinates or precise AP location measurements. The proposed algorithm constructs a local coordinate system with the first four APs that are activated in turn, and estimates the AP installation location using Wi-Fi round-trip time (RTT) lateration and the ranging results between the APs. The effectiveness of the proposed algorithm is confirmed by conducting experiments in a real indoor environment consisting of two rooms of different sizes to evaluate the positioning performance of the algorithm. The experimental results showed the proposed algorithm using Wi-Fi RTT lateration delivers high smartphone positioning performance without a pre-constructed database or precise AP location measurements.},
keywords={},
doi={10.1587/transfun.2022WBP0001},
ISSN={1745-1337},
month={May},}

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TY - JOUR
TI - Performance Evaluation of Wi-Fi RTT Lateration without Pre-Constructing a Database
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 765
EP - 774
AU - Tetsuya MANABE
AU - Kazuya SABA
PY - 2023
DO - 10.1587/transfun.2022WBP0001
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E106-A
IS - 5
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - May 2023
AB - This paper proposes an algorithm for estimating the location of wireless access points (APs) in indoor environments to realize smartphone positioning based on Wi-Fi without pre-constructing a database. The proposed method is designed to overcome the main problem of existing positioning methods requiring the advance construction of a database with coordinates or precise AP location measurements. The proposed algorithm constructs a local coordinate system with the first four APs that are activated in turn, and estimates the AP installation location using Wi-Fi round-trip time (RTT) lateration and the ranging results between the APs. The effectiveness of the proposed algorithm is confirmed by conducting experiments in a real indoor environment consisting of two rooms of different sizes to evaluate the positioning performance of the algorithm. The experimental results showed the proposed algorithm using Wi-Fi RTT lateration delivers high smartphone positioning performance without a pre-constructed database or precise AP location measurements.
ER -