SpotFi: Decimeter Level Localization Using WiFi

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spotfi : Decimeter Level Localization Using WiFiManikanta Kotaru, Kiran Joshi, Dinesh Bharadia, Sachin KattiStanford UniversityStanford, CA, USA{mkotaru, krjoshi, dineshb, paper presents the design and implementation of spotfi ,an accurate indoor Localization system that can be deployedon commodity wifi infrastructure. spotfi only uses in-formation that is already exposed by wifi chips and doesnot require any hardware or firmware changes, yet achievesthe same accuracy as state-of-the-art Localization makes two key technical contributions. First, SpotFiincorporates super-resolution algorithms that can accuratelycompute the angle of arrival (AoA) of multipath componentseven when the access point (AP) has only three , it incorporates novel filtering and estimation tech-niques to identify AoA of direct path between the localiza-tion target and AP by assigning values for each path depend-ing on how likely the particular path is}

SpotFi: Decimeter Level Localization Using WiFi Manikanta Kotaru, Kiran Joshi, Dinesh Bharadia, Sachin Katti Stanford University Stanford, CA, USA {mkotaru, krjoshi, dineshb, skatti}@stanford.edu ABSTRACT This paper presents the design and implementation of SpotFi, an accurate indoor localization system that can be deployed

  Using, Levels, Wifi, Decimeter, Localization, Spotfi, Decimeter level localization using wifi