High-SNR power offset in multiantenna communication

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Lozano A, Tulino A M, Verdu S. High-SNR power offset in multiantenna communication. IEEE Transactions on Information Theory. 2005; 51(12): 4134-4151. DOI 10.1109/TIT.2005.858937
http://hdl.handle.net/10230/16124
To cite or link this document: http://hdl.handle.net/10230/16124
dc.contributor.author Lozano Solsona, Àngel
dc.contributor.author Tulino, Antonia M.
dc.contributor.author Verdú, Sergio
dc.contributor.other Universitat Pompeu Fabra
dc.date.accessioned 2012-01-19T14:00:14Z
dc.date.available 2012-01-19T14:00:14Z
dc.date.issued 2006
dc.identifier.citation Lozano A, Tulino A M, Verdu S. High-SNR power offset in multiantenna communication. IEEE Transactions on Information Theory. 2005; 51(12): 4134-4151. DOI 10.1109/TIT.2005.858937
dc.identifier.issn 0018-9448
dc.identifier.uri http://hdl.handle.net/10230/16124
dc.description.abstract The analysis of the multiantenna capacity in the high-SNR regime has hitherto focused on the high-SNR slope (or maximum multiplexing gain), which quantifies the multiplicative increase as function of the number of antennas. This traditional characterization is unable to assess the impact of prominent channel features since, for a majority of channels, the slope equals the minimum of the number of transmit and receive antennas. Furthermore, a characterization based solely on the slope captures only the scaling but it has no notion of the power required for a certain capacity. This paper advocates a more refined characterization whereby, as function of SNRjdB, the high-SNR capacity is expanded as an affine function where the impact of channel features such as antenna correlation, unfaded components, etc, resides in the zero-order term or power offset. The power offset, for which we find insightful closed-form expressions, is shown to play a chief role for SNR levels of practical interest.
dc.language.iso eng
dc.publisher Institute of Electrical and Electronics Engineers (IEEE)
dc.rights © 2006 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. The final published article can be found at http://dx.doi.org/10.1109/TIT.2005.858937
dc.subject.other Ràdio -- Antenes
dc.subject.other Tractament del senyal
dc.subject.other Ràdio -- Interferències
dc.title High-SNR power offset in multiantenna communication
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://dx.doi.org/10.1109/TIT.2005.858937
dc.subject.keyword Channel capacity
dc.subject.keyword Multiantenna arrays
dc.subject.keyword High-SNR analysis
dc.subject.keyword Fading channels
dc.subject.keyword Antenna correlation
dc.subject.keyword Ricean channels
dc.subject.keyword Coherent communication
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/acceptedVersion


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