Indoor Positioning: A Comparison of WiFi and Bluetooth Low Energy for Region Monitoring

Mobile devices like smartphones equipped with several sensors make indoor positioning possible at low costs. This enables location based services, like mobile marketing, navigation, and assistive technologies in healthcare. In case of supporting disoriented people, the exact position of the person has not to be known, but it is sufficient to inform a caretaker when the attended person enters a critical region. This is the so-called region monitoring approach. The paper presents results from region monitoring implemented as an app for Android smartphones using WiFi and the low power protocol Bluetooth Low Energy respectively. Both networks are compared regarding accuracy and the power consumption on the mobile device.

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