Indoor localization without the pain

While WiFi-based indoor localization is attractive, the need for a significant degree of pre-deployment effort is a key challenge. In this paper, we ask the question: can we perform indoor localization with no pre-deployment effort? Our setting is an indoor space, such as an office building or a mall, with WiFi coverage but where we do not assume knowledge of the physical layout, including the placement of the APs. Users carrying WiFi-enabled devices such as smartphones traverse this space in normal course. The mobile devices record Received Signal Strength (RSS) measurements corresponding to APs in their view at various (unknown) locations and report these to a localization server. Occasionally, a mobile device will also obtain and report a location fix, say by obtaining a GPS lock at the entrance or near a window. The centerpiece of our work is the EZ Localization algorithm, which runs on the localization server. The key intuition is that all of the observations reported to the serv...

• Type: Conference
• Year: 2010
• Where: MOBICOM
• Authors: Krishna Chintalapudi, Anand Padmanabha Iyer, Venkata N. Padmanabhan
• Keywords: Communications, Indoor Localization, MOBICOM 2010, Pre-deployment Effort, WiFi-based Indoor Localization