Analysis of the Behavior of an Indoor Position System Based on Fingerprints and IEEE 802.15.4

This paper presents an analysis of the behaviour of an indoor position system based on fingerprints and IEEE 802.15.4 that has been adapted to be tested in a competition, called EvAAL (Evaluating AAL Systems through Competitive Benchmarking), hold both in Madrid (tests) and Eindhoven (results). The...

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Detalhes bibliográficos
Autores: Medina Rodríguez, Ana Verónica, Gómez Martín, José Antonio, Ribeiro, José A., Dorronzoro Zubiete, Enrique, Martín Guillén, Sergio
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Recursos:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/54045
Acesso em linha:http://hdl.handle.net/11441/54045
Access Level:acceso abierto
Palavra-chave:IEEE 802.15.4
RSSI
Centroid
Indoor position
ZigBee
WSN
BitCloud
OpenMAC
Descrição
Resumo:This paper presents an analysis of the behaviour of an indoor position system based on fingerprints and IEEE 802.15.4 that has been adapted to be tested in a competition, called EvAAL (Evaluating AAL Systems through Competitive Benchmarking), hold both in Madrid (tests) and Eindhoven (results). The objectives of this analysis are to determine the best algorithm that should have been applied in order to obtain the best results in the competition to use them in other environments. Among the different combinations that can be applied, i.e., the way the signature database is filled in and the algorithm uses to determine the closest location point, the best results are obtained using a global signature database where each signature entry is calculated by the medium of samples signatures database and the closest location is determined by a centroid algorithm with the parameter c set to 1.3. In this way, the error made improves the one obtained in the EvAAL, which is reduced by 100 centimetres.