Error Estimation for Indoor 802.11 Location Fingerprinting

802.11-based indoor positioning systems have been under research for quite some time now. However, despite the large attention this topic has gained, most of the research focused on the calculation of position estimates. In this paper, we go a step further and investigate how the position error that is inherent to 802.11-based positioning systems can be estimated. Knowing the position error is crucial for many applications that rely on position information: End users could be informed about the estimated position error to avoid frustration in case the system gives faulty position information. Service providers could adapt their delivered services based on the estimated position error to achieve a higher service quality. Finally, system operators could use the information to inspect whether a location system provides satisfactory positioning accuracy throughout the covered area. For position error estimation, we present four novel algorithms that take different features into account. Ad...

• Type: Conference
• Year: 2009
• Where: LOCA
• Authors: Hendrik Lemelson, Mikkel Baun Kjærgaard, Rene Hansen, Thomas King
• Keywords: Estimated Position, Information Management, LOCA 2009, Position Error, Positioning Systems