Positioning in wireless local networks Wi-Fi standard IEEE 802.11az. Part 3. Influence of physical layer parameters

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Abstract

The work concludes a series dedicated to positioning in wireless local networks Wi-Fi standard IEEE 802.11az. The paper analyzes the physical layer parameters that contribute to achieving decimeter-level positioning accuracy in wireless local networks of the IEEE 802.11az standard in a multipath scenario. The impact of channel width, guard interval duration, and MIMO technology is shown. Qualitative analysis is accompanied by quantitative assessment using simulation modeling to study influence of parameters on positioning accuracy, considering previously reviewed models of IEEE 802.11az networks and multipath radio channels at the physical layer.

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About the authors

E. S. Bagaev

СПбГУТ им. проф. М.А. Бонч-Бруевича

Author for correspondence.
Email: bagaeve13@yandex.ru

аспирант

Russian Federation

G. A. Fokin

СПбГУТ им. проф. М.А. Бонч-Бруевича

Email: grihafokin@gmail.com

д.т.н., проф.

Russian Federation

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Supplementary files

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2. Fig.1. Kramer–Rao boundary for channel widths B = 20 MHz and B = 40 MHz

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3. Fig.2. Delay profiles as MLC propagates at different channel widths

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4. Fig.3. IGF of primary rangefinder measurements with different channel widths B

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5. Fig.4. Transmitted sequence of protected HE-LTF characters with different GI

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6. Fig.5. Network diagram for IM

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7. Fig.6. ToA estimation at SISO

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8. Fig.7. ToA score at MIMO 2x2

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9. Fig. 8. Location error for SISO 1x1 and MIMO 2x2

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Copyright (c) 2025 Bagaev E.S., Fokin G.A.