CrumblR: Enabling proxemic services through opportunistic location sharing

The need for a device to determine its own location and share it with individual Location-Based Services (LBSs) prevents large-scale adoption of indoor services, specially those belonging to small businesses or those intrinsic to short-lived events. We present CrumblR - a proxemic service broker platform that advocates anonymised location sharing with place owners instead of LBS providers to receive value-added contextual services. By decoupling location detection from LBSs, CrumblR liberates users from disclosing their locations to individual service providers. Our platform relies on opportunistic sharing of wireless signal fingerprints with nearby places to enable discovery of proxemic services associated with the place. In this WiP paper, we present the architectural design and the simple place proximity detection algorithms used in CrumblR.