Sequential estimation of time-varying multipath channel for MIMO-OFDM systems

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dc.contributor	Universitat Pompeu Fabra
dc.contributor.author	Angelosante, Daniele
dc.contributor.author	Biglieri, Ezio
dc.contributor.author	Lops, Marco
dc.date	2008
dc.identifier.citation	Angelosante D, Biglieri E, Lops M. Sequential estimation of time-varying multipath channel for MIMO-OFDM systems. In: Proceedings of the 2008 IEEE International Symposium on Information Theory (ISIT '08); 2008 Jul 6-11; Toronto, Ontario, Canada. [New York]: IEEE; c2008. p.589-593. DOI 10.1109/ISIT.2008.4595054
dc.identifier.citation	0271-4655
dc.identifier.citation	http://dx.doi.org/10.1109/ISIT.2008.4595054
dc.identifier.uri	http://hdl.handle.net/10230/20477
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation	Proceedings of the 2008 IEEE International Symposium on Information Theory (ISIT '08); 2008 Jul 6-11; Toronto, Ontario, Canada. [New York]: IEEE; c2008.
dc.relation	info:eu-repo/grantAgreement/EC/FP6/026905
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4595054
dc.subject	Multiplexatge per divisió de freqüència
dc.subject	Sistemes MIMO
dc.subject	Conjunts, Teoria de
dc.title	Sequential estimation of time-varying multipath channel for MIMO-OFDM systems
dc.type	info:eu-repo/semantics/conferenceObject
dc.type	info:eu-repo/semantics/publishedVersion
dc.description.abstract	Comunicació presentada al IEEE International Symposium on Information Theory (ISIT '08), celebrat a Toronto (Ontario, Canadà) els dies 6, 7, 8, 9, 10 i 11 de juliol de 2008, organitzat per l'Institute of Electrical and Electronics Engineers (IEEE).
dc.description.abstract	In this paper, we introduce a pilot-aided multipath channel estimator for Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems. Typical estimation algorithms assume the number of multipath components and delays to be known and constant, while their/namplitudes may vary in time. In this work, we focus on the more realistic assumption that also the number of channel taps is unknown and time-varying. The estimation problem arising from this assumption is solved using Random Set Theory (RST), which is a probability theory of finite sets. Due to the lack of a closed form of the optimal filter, a Rao-Blackwellized Particle Filter (RBPF) implementation of the channel estimator is derived. Simulation results demonstrate the estimator effectiveness.
dc.description.abstract	The work of Ezio Biglieri was supported by the Spanish/nMinistery of Education and Science under Project TEC2006-/n01428/TCM, and by the STREP project No. IST-026905/n(MASCOT) within the 6th framework program of the European/nCommission.
dc.description.abstract	The work of Ezio Biglieri was supported by the Spanish/nMinistery of Education and Science under Project TEC2006-/n01428/TCM, and by the STREP project No. IST-026905/n(MASCOT) within the 6th framework program of the European/nCommission.

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