Abstract
Most radio-based indoor localization 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 chapter, we investigate, under a crowdsourcing scheme, 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. In particular, we design LiFS, an indoor localization system that crowdsources the site survey efforts to mobile users and enables automatic radio map construction.
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