Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Comparison of Localization Methods Using Calibrated and Simulated Fingerprints for Indoor Systems Based on Bluetooth and WLAN Technologies
Year:2009
Research Areas
  • Processing and signal analysis
Information
Abstract
This paper compares two different localization algorithms to face the problem of indoor positioning using Bluetooth and WLAN technologies, which we have called: the fusion algorithm and the combination algorithm. The first algorithm is based on the construction of a fusion map using WiFi and Bluetooth power values. Considering the three lowest values of a defined distance, we compute the coordinates of the target point that we want to localize. In the second algorithm, the location determination is carried out independently with every single technology; then, results are combined to obtain a final estimated position. The performance of these methods has been tested experimentally using a simulated map and a real calibrated one. Using a real calibrated map, the localization errors obtained with the fusion algorithm are smaller than with the combination one, while when using a simulated map there is almost no difference between both algorithms. The results of the experiments made with the real calibrated map are a little better than using the simulated map, but the improvement obtained using the real map is not enough to confirm that using this one is worth, because of the effort necessary to build it. Keywords: Context-awareness, Indoor Location, Fusion, WLAN, Bluetooth.
International
Si
Congress
3rd International Workshop on User-Centric Technologies and Applications (MADRINET¿09),
960
Place
SALAMANCA, ESPAÑA
Reviewers
Si
ISBN/ISSN
978-84-613-27140
Start Date
01/06/2009
End Date
05/06/2009
From page
133
To page
142
Proc. 3rd International Workshop on User-Centric Technologies and Applications (MADRINET09),
Participants
  • Participante: SOFIA APARICIO
  • Autor: Paula Tarrío Alonso (UPM)
  • Participante: EDUARDO METOLA
  • Autor: Jose Ramon Casar Corredera (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Procesado de Datos y Simulación (GPDS)-CEDITEC
  • Departamento: Señales, Sistemas y Radiocomunicaciones
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