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Memorias de investigación
Communications at congresses:
Enhancing the Performance of Propagation Model-Based Positioning Algorithms
Year:2009
Research Areas
  • Processing and signal analysis
Information
Abstract
Object localization in wireless networks through Received Signal Strength (RSS) measurements requires a precise estimation of the signal attenuation model in order to produce meaningful results. The popular lognormal channel model, widely adopted to describe the signal strength attenuation as a function of the distance between nodes, turns out to be too simplistic when applied to a real scenario. In this paper, we analyze two possible improvements to this model: on one hand, we build a different channel model for each reference node in the network, with the aim of tackling the anisotropy of the environment. On the other hand, we explicitly append to the lognormal model a term to account for walls attenuation. A thorough experimental testbed demonstrates the potentials of the two approaches, with the second one being especially useful to counteract the effect of the limited sensitivity of practical wireless receivers. Keywords: RSS, Localization, Lognormal channel model, Hyperbolic and Circular positioning
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
123
To page
132
Proc. 3rd International Workshop on User- Centric Technologies and Applications (MADRINET¿09),
Participants
  • Participante: HENAR MARTIN
  • Autor: Paula Tarrío Alonso (UPM)
  • Autor: Ana Maria Bernardos Barbolla (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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