Performance Analysis of Wi-Fi Indoor Localization with Channel State Information
Performance Analysis of Wi-Fi Indoor Localization with Channel State Information
复制标题
基于信道状态信息的 Wi-Fi 室内定位性能分析
DOI:
10.1109/tmc.2018.2868680
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发表时间:
2019-08
影响因子:
7.9
通讯作者:
Wang Xinbing
中科院分区:
文献类型:
--
作者:
Tian Xiaohua;Zhu Sujie;Xiong Sijie;Jiang Binyao;Yang Yucheng;Wang Xinbing
Recently proposed Wi-Fi indoor localization systems utilizing channel state information (CSI) derived from the received signal achieve admirable accuracy. This paper presents an information-theoretical analysis in the received waveform level to explore the fundamental limits of the approach. In particular, we perform frequency domain Cram$\acute{e}$e´r-Rao bound (CRB) analysis for location estimation with CSI. Our analysis resolves the high-rank Fisher information matrix challenge, and establishes intrinsic connection between parameters to be estimated for localization and the received waveform information observable with the CSI retrieving toolkit. We also analyze the influence of the asynchronization between the transmitter and the receiver to the performance bound of the CSI approach. Moreover, we shed light on the insight into the design of the CSI localization systems. In particular, we show that the CSI approach presents varying performance for localizing targets in different distances and directions with respect to the CSI retrieving anchor point (AP), and the geometric distribution of AP antennas could fundamentally influence the localization performance. Comprehensive experimental results are demonstrated to validate our theoretical analysis.
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DOI:
10.1145/2348543.2348581
发表时间:
2012-08
期刊:
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影响因子:
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作者:
Hongbo Liu;Yu Gan;J. Yang;Simon Sidhom;Yan Wang;Yingying Chen;Fan Ye
通讯作者:
Hongbo Liu;Yu Gan;J. Yang;Simon Sidhom;Yan Wang;Yingying Chen;Fan Ye
影响因子:
2.5
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S. Kay
影响因子:
2.8
作者:
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Wetherall, David
DOI:
10.1145/1851182.1851203
发表时间:
2010-08
期刊:
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影响因子:
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作者:
D. Halperin;Wenjun Hu;Anmol Sheth;D. Wetherall
通讯作者:
D. Halperin;Wenjun Hu;Anmol Sheth;D. Wetherall
DOI:
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发表时间:
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期刊:
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影响因子:
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