Joint position and clock tracking of wireless node

Grisales Campeón, Juan Pablo; Fierenz, Pablo Ignacio

artículo de publicación periódica.page.titleprefix
Joint position and clock tracking of wireless node

dc.contributor.author	Grisales Campeón, Juan Pablo
dc.contributor.author	Fierenz, Pablo Ignacio
dc.date.accessioned	2022-05-31T18:31:14Z
dc.date.available	2022-05-31T18:31:14Z
dc.date.issued	2021
dc.description.abstract	"In this paper we consider the problem of joint position and clock tracking of a mobile wireless node by a set of reference nodes. Imperfections of the mobile clock are characterized by its skew and offset, which are assumed to change with time according to simple random walk models. We put forth a measurement protocol, similar to that used in two-way rang ing, and apply extended and unscented Kalman filters to estimate the position and the velocity of the mobile, and the skew and offset of its clock. We analyze the performance of the algorithms by means of extensive simulations, where the mobile’s velocity is assumed to follow a random walk. Simulation results are compared to the Cramér-Rao bound for a simplified model of a mobile with constant velocity. We show that estimation errors are largely independent of the mean values of the offset and the skew, but they increase with the mean speed. We also study how estimation errors are influenced by other factors such as the number of reference nodes. We believe these results to be of relevance, specially, in indoor positioning applications."	en
dc.identifier.uri	http://ri.itba.edu.ar/handle/123456789/3898
dc.language.iso	en	en
dc.relation	info:eu-repo/semantics/altIdentifier/doi/10.1016/j.comnet.2021.108296
dc.subject	TEORIA DE LA ESTIMACION	es
dc.subject	SEGUIMIENTO	es
dc.title	Joint position and clock tracking of wireless node	en
dc.type	Artículos de Publicaciones Periódicas	es
dc.type	info:eu-repo/semantics/acceptedVersion
dspace.entity.type	Artículo de Publicación Periódica
itba.description.filiation	Fil: Grisales Campeón, Juan Pablo. Instituto Tecnológico de Buenos Aires; Argentina.
itba.description.filiation	Fil: Fierenz, Pablo Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
itba.description.filiation	Fil: Fierenz, Pablo Ignacio. Instituto Tecnológico de Buenos Aires; Argentina.