Assessment of direct positioning for IR-UWB in IEEE 802.15.4a channels

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.contributor	Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
dc.contributor.author	Navarro, Mònica
dc.contributor.author	Closas, Pau
dc.contributor.author	Nájar Martón, Montserrat
dc.date	2013
dc.identifier.citation	Navarro, M.; Closas, P.; Najar, M. Assessment of direct positioning for IR-UWB in IEEE 802.15.4a channels. A: IEEE International Conference on Ultra-WideBand. "2013 IEEE International Conference on Ultra-Wideband (ICUWB) took place 15-18 September 2013 in Sidney, Australia". Sidney: Institute of Electrical and Electronics Engineers (IEEE), 2013, p. 55-60.
dc.identifier.citation	978-1-4799-0969-8
dc.identifier.citation	10.1109/ICUWB.2013.6663822
dc.identifier.uri	http://hdl.handle.net/2117/22151
dc.language.iso	eng
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation	http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=06663822
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Satèl·lits i ràdioenllaços
dc.subject	Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Xarxes de banda ampla
dc.subject	Broadband communication systems
dc.subject	Zigbee
dc.subject	Maximum likelihood estimation
dc.subject	Satellite navigation
dc.subject	Time-of-arrival estimation
dc.subject	Ultra wideband communication
dc.subject	Telecomunicació de banda ampla, Sistemes de
dc.title	Assessment of direct positioning for IR-UWB in IEEE 802.15.4a channels
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	This paper assesses the problem of localization in IR-UWB under realistic channel models for Direct Position Estimation (DPE) approaches. DPE schemes have been proposed for positioning and localization for well developed systems like GNSS, where it has been analytically proved that the Maximum-likelihood single-step estimator outperforms two-step procedures. The extension to wideband systems and less favorable scenarios like indoor UWB channels is less explored. We derive a DPE algorithm and analyze its performance against two-step TOA based localization for an IR-UWB system. Numerical results are provided for IEEE 802.15.4a channel model showing positioning performance of the two approaches and highlighting the tradeoffs.
dc.description.abstract	Peer Reviewed

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