| Techreport |
| Type of Publication |
| Distribution of Fingerprints for 802.11-based Positioning
Systems |
| Title |
|
Thomas Butter
Matthias Brantner
Alexander Biskop
Andreas Färber
|
| Authors |
| Technical Report TR-2006-019, Department for Mathematics and Computer Science,
University of Mannheim, 07. December 2006 |
| Published in |
| While indoor positioning systems based on
802.11 and fingerprinting work pretty well, it is unknown how to
distribute a large amount of fingerprint data to mobile devices.
Even worse, many mobile devices are restricted in terms of
memory. In this demo proposal, we present two distribution
approaches for fingerprints that fill this gap: the Strongest
Access Point (SAP) and the Intersection of Access Points (IAP)
algorithms. These approaches utilize the 802.11 infrastructure to
download only a subset of the complete fingerprint data to a
mobile device. The subset covers the area close to the actual
position of the mobile device in such a way that position
estimates can be computed. For the MDM 2007 demo session, we
offer to demonstrate how these distribution approaches for
fingerprint data work. The demo will include live indoor
positioning of visitors using mobile devices while concurrently
displaying the distribution of fingerprint data. |
| Abstract |
|
| Projects |
|
fingerprint distribution
positioning systems
location systems
802.11
ubiquious computing
Mobile Business
context-aware applications
location-based services
|
| Keywords |
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