Cramér-Rao lower bound for breakpoint distance estimation in a path-loss model

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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	Castro Arvizu, Juan Manuel
dc.contributor.author	Closas Gómez, Pau
dc.contributor.author	Fernández Rubio, Juan Antonio
dc.date	2014
dc.identifier.citation	Castro, J.; Closas, P.; Fernandez, J. Cramér-Rao lower bound for breakpoint distance estimation in a path-loss model. A: IEEE International Conference on Communications. "2014 IEEE International Conference on Communications (ICC) took place 10-14 June 2014 in Sydney, Australia". Sydney: Institute of Electrical and Electronics Engineers (IEEE), 2014, p. 176-180.
dc.identifier.citation	978-1-4799-2003-7
dc.identifier.citation	10.1109/ICCW.2014.6881192
dc.identifier.uri	http://hdl.handle.net/2117/26794
dc.language.iso	eng
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation	http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6881192
dc.relation	info:eu-repo/grantAgreement/EC/FP7/318306/EU/Network of Excellence in Wireless COMmunications #/NEWCOM#
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
dc.subject	Location-based services
dc.subject	Local area networks (Computer networks)
dc.subject	Engineering controlled terms
dc.subject	Bayesian networks
dc.subject	Estimation
dc.subject	Fading channels
dc.subject	Geolocalització, Serveis de
dc.subject	Xarxes d'àrea local (Xarxes d'ordinadors)
dc.title	Cramér-Rao lower bound for breakpoint distance estimation in a path-loss model
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	This paper addresses the problem of determining the Cramér-Rao lower bound (CRLB) for the parameters and breakpoint distance in a Path-Loss Channel model for Received Signal Strength (RSS) measurements. The path loss model is usually assumed for corrupted RSS measurements due to the shadow fading channel feature. In this paper the two-slope path loss model is considered, in which RSS measurements are modeled differently for close and far distances. Closed-form expressions for the CRLB parameters are derived for unknown breakpoint distance. For unknown parameters and breakpoint distance value, a Bayesian estimation method is proposed. The CRLB is then compared with the performance of the herein proposed method. The comparison illustrates convergence and efficiency of the Bayesian estimator.

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