Wi-Fi Indoor Localization Error Bound Analysis Method Based on Channel State Information Ranging

Mu ZHOU; Zhenya ZHANG; Xiaolong YANG; Liangbo XIE; Zengshan TIAN

doi:10.11999/JEIT200198

Volume 43 Issue 9

Sep. 2021

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Article Navigation > Journal of Electronics & Information Technology > 2021 > 43(9): 2624-2631

Mu ZHOU, Zhenya ZHANG, Xiaolong YANG, Liangbo XIE, Zengshan TIAN. Wi-Fi Indoor Localization Error Bound Analysis Method Based on Channel State Information Ranging[J]. Journal of Electronics & Information Technology, 2021, 43(9): 2624-2631. doi: 10.11999/JEIT200198

Citation:

Mu ZHOU, Zhenya ZHANG, Xiaolong YANG, Liangbo XIE, Zengshan TIAN. Wi-Fi Indoor Localization Error Bound Analysis Method Based on Channel State Information Ranging[J]. Journal of Electronics & Information Technology, 2021, 43(9): 2624-2631. doi: 10.11999/JEIT200198

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Wi-Fi Indoor Localization Error Bound Analysis Method Based on Channel State Information Ranging

doi: 10.11999/JEIT200198 cstr: 32379.14.JEIT200198

Mu ZHOU^{1, 2},
Zhenya ZHANG^{1, 2
,
,},
Xiaolong YANG^{1, 2},
Liangbo XIE^{1, 2},
Zengshan TIAN^{1, 2}

1.
School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2.
Chongqing Key Laboratory of Mobile Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Funds: The National Natural Science Foundation of China (61771083, 61771209), The Science and Technology Research Program of Chongqing Municipal Education Commission (KJQN201900603, KJZD-K202000605), Chongqing Natural Science Foundation Project (cstc2020jcyj-msxmX0842)

Received Date: 2020-03-24
Rev Recd Date: 2021-01-25

Available Online: 2021-02-04

Publish Date: 2021-09-16

Abstract

Abstract

Compared with the Wi-Fi Received Signal Strength (RSS) commonly-used for the indoor localization, the Channel State Information (CSI) can be used for the precise ranging to achieve the high Wi-Fi indoor localization accuracy since it includes the fine-grained physical-layer information such as the amplitude and phase of each subcarrier during the signal transmission. Due to the lack of theoretical analysis of the localization error bound in existing CSI ranging-based localization methods, it is difficult to compare the ideal performance of different localization methods. Therefore, a CSI ranging-based Wi-Fi indoor localization error bound analysis method is proposed, which is based on the indoor signal propagation model to derive out the CSI ranging-based localization error bound with the clock asynchronous effect by considering the relationship between the localization accuracy and the path loss, shadow fading, and multipath effect. Besides, through the experimental comparison, this paper analyzes the difference between the actual localization error and the derived localization error bound, as well as discusses the impact of different experimental parameters on the localization performance.
- Indoor localization,
- Channel State Information (CSI),
- Wi-Fi,
- Localization error bound,
- Ranging

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References(18)

References

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