SINR Bounds for Broadcast Channels with Zero-Forcing Beamforming and Limited Feedback

dc.creatorFernandes, FG
dc.creatorLopes, RD
dc.creatorZanatta, D
dc.date2012
dc.dateJUL
dc.date2014-07-30T19:57:59Z
dc.date2015-11-26T16:57:06Z
dc.date2014-07-30T19:57:59Z
dc.date2015-11-26T16:57:06Z
dc.date.accessioned2018-03-28T23:44:38Z
dc.date.available2018-03-28T23:44:38Z
dc.identifierIeee Transactions On Communications. Ieee-inst Electrical Electronics Engineers Inc, v. 60, n. 7, n. 1772, n. 1776, 2012.
dc.identifier0090-6778
dc.identifierWOS:000309202300004
dc.identifier10.1109/TCOMM.2012.060112.100205A
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/74289
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/74289
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1277571
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionChannel state information at the transmitter (CSIT) enables high rates in multiuser systems with multiple transmit antennas, as it can be used for multiplexing gain and multiuser diversity. However, CSIT is often obtained through information fedback from the users, and it can be severely quantized to limit overhead. In this case, transmitting to multiple users will typically cause interference among them, which degrades the signal-to-interference-plus-noise ratio (SINR). In this letter, we derive bounds on this SINR, assuming that the transmitter uses zero-forcing beamforming, and that active users are almost orthogonal to one another. Simulation results show that our bounds may be used as a metric for user scheduling.
dc.description60
dc.description7
dc.description1772
dc.description1776
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCNPq [304155/2009-8]
dc.languageen
dc.publisherIeee-inst Electrical Electronics Engineers Inc
dc.publisherPiscataway
dc.publisherEUA
dc.relationIeee Transactions On Communications
dc.relationIEEE Trans. Commun.
dc.rightsfechado
dc.rightshttp://www.ieee.org/publications_standards/publications/rights/rights_policies.html
dc.sourceWeb of Science
dc.subjectBroadcast channels
dc.subjectarray signal processing
dc.subjectfeedback communication
dc.subjectcochannel interference
dc.subjectdiversity methods
dc.subjectUser Selection
dc.titleSINR Bounds for Broadcast Channels with Zero-Forcing Beamforming and Limited Feedback
dc.typeArtículos de revistas


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