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dc.contributor.authorGonzález-Coma, José P.
dc.contributor.authorJoham, Michael
dc.contributor.authorCastro-Castro, Paula-María
dc.contributor.authorCastedo, Luis
dc.date.accessioned2023-12-11T17:42:52Z
dc.date.available2023-12-11T17:42:52Z
dc.date.issued2017-02
dc.identifier.citationGonzález-Coma, J. P., Joham, M., Castro, P. M., & Castedo, L. (2017). QoS constrained power minimization in the MISO broadcast channel with imperfect CSI. Signal Processing, 131, 447–455. https://doi.org/10.1016/j.sigpro.2016.09.007es_ES
dc.identifier.issn0165-1684
dc.identifier.urihttp://hdl.handle.net/2183/34447
dc.descriptionThis manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/. This version of the article: González-Coma, J. P., Joham, M., Castro, P. M., & Castedo, L. (2017). 'QoS constrained power minimization in the MISO broadcast channel with imperfect CSI', has been accepted for publication in Signal Processing, 131, 447–455. The Version of Record is available online at: https://doi.org/10.1016/j.sigpro.2016.09.007.es_ES
dc.description.abstract[Abstract]: In this paper we consider the design of linear precoders and receivers in a Multiple-Input Single-Output (MISO) Broadcast Channel (BC). We aim to minimize the transmit power while meeting a set of per-user Quality-of-Service (QoS) constraints expressed in terms of per-user average rate requirements. The Channel State Information (CSI) is assumed to be known perfectly at the receivers but only partially at the transmitter. To solve this problem we convert the QoS constraints into Minimum Mean Square Error (MMSE) constraints. We then leverage MSE duality between the BC and the Multiple Access Channel (MAC), as well as standard interference functions in the dual MAC, to perform power minimization by means of an Alternating Optimization (AO) algorithm. Problem feasibility is also studied to determine whether the QoS constraints can be met or not. Finally, we present an algorithm to balance the average rates and manage situations that may be unfeasible, or lead to an unacceptably high transmit power.es_ES
dc.description.sponsorshipThis work was supported by Xunta de Galicia, MINECO of Spain, and FEDER funds of EU, under grants 2012/287 and TEC2013-47141-C4-1-R.es_ES
dc.description.sponsorshipXunta de Galicia; 2012/287es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/TEC2013-47141-C4-1-R/ES/TECNICAS DE ACCESO RADIO PARA REDES INALAMBRICAS HETEROGENEASes_ES
dc.relation.isversionofhttps://doi.org/10.1016/j.sigpro.2016.09.007
dc.relation.urihttps://doi.org/10.1016/j.sigpro.2016.09.007es_ES
dc.rightsAtribución-NoComercial-SinDerivadas 4.0 Internacional (CC-BY-NC-ND 4.0)es_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subjectMultiple-Input Single-Outputes_ES
dc.subjectBroadcast channelses_ES
dc.subjectImperfect CSIes_ES
dc.subjectQoS constraintses_ES
dc.subjectRate balancinges_ES
dc.titleQoS constrained power minimization in the MISO broadcast channel with imperfect CSIes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessinfo:eu-repo/semantics/openAccesses_ES
UDC.journalTitleSignal Processinges_ES
UDC.volume131es_ES
UDC.startPage447es_ES
UDC.endPage455es_ES
dc.identifier.doi10.1016/j.sigpro.2016.09.007


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