What is the value of joint processing of pilots and data in block-fading channels?

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dc.contributor.author	Jindal, Nihar
dc.contributor.author	Lozano Solsona, Angel
dc.contributor.author	Marzetta, Thomas L.
dc.date	2009
dc.identifier.citation	Jindal N, Lozano A, Marzetta TL. What is the value of joint processing of pilots and data in block-fading channels?. In: 2009 IEEE International Symposium on Information Theory (ISIT '09); 2009 Jun 28-Jul 3; Seoul, Korea. [S.l.]: IEEE; c2009. p. 2189-2193. DOI 10.1109/ISIT.2009.5205818
dc.identifier.citation	0271-4655
dc.identifier.citation	http://dx.doi.org/10.1109/ISIT.2009.5205818
dc.identifier.uri	http://hdl.handle.net/10230/20499
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation	2009 IEEE International Symposium on Information Theory (ISIT '09); 2009 Jun 28-Jul 3; Seoul, Korea. [S.l.]: IEEE; c2009.
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	© 2009 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=5205818
dc.subject	Comunicació sense fil, Sistemes de
dc.title	What is the value of joint processing of pilots and data in block-fading channels?
dc.type	info:eu-repo/semantics/conferenceObject
dc.type	info:eu-repo/semantics/publishedVersion
dc.description.abstract	Comunicació presentada en el International Symposium on Information Theory (ISIT '09), celebrat els dies 28, 29 i 30 de juny i 1, 2 i 3 de juliol de 2009 a Seül (Corea del Sud), organitzat per l’Institute of Electrical and Electronics Engineers (IEEE).
dc.description.abstract	The spectral efficiency achievable with joint processing of pilot and data symbol observations is compared with that achievable through the conventional (separate) approach of first estimating the channel on the basis of the pilot symbols alone, and subsequently detecting the data/nsymbols. Studied on the basis of a mutual information lower bound, joint processing is found to provide a non-negligible advantage relative to separate processing, particularly for fast fading. It is shown that, regardless of the fading rate, only a very small number of pilot symbols (at most one per transmit antenna and per channel coherence interval) should/nbe transmitted if joint processing is allowed.

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