Literature Database Entry

zubow2025wi-fi

Anatolij Zubow, Christos Laskos, Sascha Rösler, Gerhard Wunder and Falko Dressler, "Wi-Fi Ranging under Interference," Proceedings of IEEE International Conference on Computing, Networking and Communications (ICNC 2025), Honolulu, HI, February 2025. (to appear)

Abstract

The next generation of WiFi aims to deliver highly accurate location estimation through time-of-flight measurements. While initial results show promising performance, there is a lack of studies conducted under realistic, congested network conditions with significant cross-technology and co-channel interference. In this paper, we demonstrate that time of arrival (ToA)-based ranging, utilizing the MUSIC super-resolution algorithm, is severely impacted by interference. This is due to the fact that the channel state information (CSI) obtained in the presence of interference includes not only the characteristics of the channel but also the interference itself. This corrupted CSI leads to persistent ToA errors. Simulation results indicate that these errors are particularly pronounced in indoor scenarios with multipath propagation resulting in a ranging error of up-to 3 m which can only be mitigated by the usage of wider channels, e.g., 160 MHz, for ranging.

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Anatolij Zubow
Christos Laskos
Sascha Rösler
Gerhard Wunder
Falko Dressler

BibTeX reference

@inproceedings{zubow2025wi-fi,
    author = {Zubow, Anatolij and Laskos, Christos and R{\"{o}}sler, Sascha and Wunder, Gerhard and Dressler, Falko},
    note = {to appear},
    title = {{Wi-Fi Ranging under Interference}},
    publisher = {IEEE},
    address = {Honolulu, HI},
    booktitle = {IEEE International Conference on Computing, Networking and Communications (ICNC 2025)},
    month = {2},
    year = {2025},
   }
   
   

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