Locating in fingerprint space: wireless indoor localization with little human intervention

12 years 1 months ago

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Indoor localization is of great importance for a range of pervasive applications, attracting many research eﬀorts in the past decades. Most radio-based solutions require a process of site survey, in which radio signatures of an interested area are annotated with their real recorded locations. Site survey involves intensive costs on manpower and time, limiting the applicable buildings of wireless localization worldwide. In this study, we investigate novel sensors integrated in modern mobile phones and leverage user motions to construct the radio map of a ﬂoor plan, which is previously obtained only by site survey. On this basis, we design LiFS, an indoor localization system based on oﬀ-the-shelf WiFi infrastructure and mobile phones. LiFS is deployed in an oﬃce building covering over 1600m2 , and its deployment is easy and rapid since little human intervention is needed. In LiFS, the calibration of ﬁngerprints is crowdsourced and automatic. Experiment results show that LiFS a...

Zheng Yang, Chenshu Wu, Yunhao Liu

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