A Novel Fingerprint Location Method Using Ray-Tracing

Mobile location estimation via the use of a spatially-dependent signal database is of growing importance. However, this location estimation method usually requires an a priori experimental measurement campaign. To overcome this drawback we propose here a new method of location estimation via the rea...

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Bibliographic Details
Published inGLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference pp. 1 - 5
Main Authors Maher, P.S., Malaney, R.A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2009
Subjects
Australia
Base stations
Earth
Fingerprint recognition
Hardware
Helium
Mobile handsets
Ray tracing
Spatial databases
Time measurement
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Summary:Mobile location estimation via the use of a spatially-dependent signal database is of growing importance. However, this location estimation method usually requires an a priori experimental measurement campaign. To overcome this drawback we propose here a new method of location estimation via the real-time creation of a virtual signal database. The virtual database is created on-demand by an optimized ray-tracing algorithm embedded on the user device. We explore how the creation of the virtual database can be optimized so as to determine the required location at the lowest time-to-fix. Our results demonstrate that in current 3G cellular mobile systems, and using current mobile phone hardware, sub-50 m accuracy can be achieved in less than a few seconds. Our work shows that accurate real-time location estimation via user embedded ray tracing is now viable and can lead to more accurate solutions in a range of circumstances.
ISBN:9781424441488
142444148X
ISSN:1930-529X
2576-764X
DOI:10.1109/GLOCOM.2009.5425231