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Per-antenna rate and power control for MIMO layered architectures in the low- and high-power regimes

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dc.contributor.author Lozano Solsona, Angel
dc.date.accessioned 2011-11-11T12:50:42Z
dc.date.available 2011-11-11T12:50:42Z
dc.date.issued 2010
dc.identifier.citation Lozano A. Per-antenna rate and power control for MIMO layered architectures in the low- and high-power regimes. IEEE Transactions on Communications. 2010; 58(2): 652-659. DOI 10.1109/TCOMM.2010.02.080557
dc.identifier.issn 0090-6778
dc.identifier.uri http://hdl.handle.net/10230/13025
dc.description.abstract In a MIMO layered architecture, several codewords/nare transmitted from a multiplicity of antennas. Although the/nspectral efficiency is maximized if the rates of these codewords/nare separately controlled, the feedback rate within the link/nadaptation loop is reduced if they are constrained to be identical./nThis poses a direct tradeoff between performance and/nfeedback overhead. This paper provides analytical expressions/nthat quantify the difference in spectral efficiency between both/napproaches for arbitrary numbers of antennas. Specifically, the/ncharacterization takes place in the realm of the low- and highpower/nregimes via expansions that are shown to have a wide/nrange of validity./nIn addition, the possibility of adjusting the transmit power/nof each codeword individually is considered as an alternative to/nthe separate control of their rates. Power allocation, however,/nturns out to be inferior to rate control within the context of this/nproblem.
dc.language.iso eng
dc.publisher Institute of Electrical and Electronics Engineers (IEEE)
dc.rights © 2010 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/stamp/stamp.jsp?tp=&arnumber=5407630&isnumber=5407594
dc.subject.other Ràdio Antenes
dc.subject.other Comunicació sense fil, Sistemes de
dc.title Per-antenna rate and power control for MIMO layered architectures in the low- and high-power regimes
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://dx.doi.org/10.1109/TCOMM.2010.02.080557
dc.subject.keyword Spectral efficiency
dc.subject.keyword Mutual information
dc.subject.keyword MIMO
dc.subject.keyword Multiantenna
dc.subject.keyword BLAST
dc.subject.keyword PARC
dc.subject.keyword Low-power
dc.subject.keyword High-power
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/acceptedVersion


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