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dc.contributor.authorLagén Morancho, Sandra
dc.contributor.authorAgustín de Dios, Adrián
dc.contributor.authorVidal Manzano, José
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2016-04-08T12:04:34Z
dc.date.available2016-04-08T12:04:34Z
dc.date.issued2016-01
dc.identifier.citationLagen, S., Agustin, A., Vidal, J. Coexisting linear and widely linear transceivers in the MIMO interference. "IEEE transactions on signal processing", Gener 2016, vol. 64, núm. 3, p. 652-665.
dc.identifier.issn1053-587X
dc.identifier.urihttp://hdl.handle.net/2117/85426
dc.description©2015 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.
dc.description.abstractRecent results have shown the benefits of widely linear precoding (WLP) in the MIMO interference channel (MIMO IC) assuming that all transmitters can follow the same strategy. Motivated by a transitional scenario where legacy linear transmitters coexist with widely linear ones, this work investigates the general K-user MIMO IC in a heterogeneous (linear and widely linear) transmitter deployment. In particular, we address the maximization of the weighted sum-rate (WSR) for (widely) linear transmit filters design through the use of the complexvalued formulation. Since the maximum WSR problem is nonconvex, and thus difficult to be solved, we formulate an equivalent minimum weighted mean square error problem that allows deriving closed-form expressions for (widely) linear transceivers. Then an iterative procedure is proposed, which is proven to reach a stationary point of the maximum WSR problem. Simulations show that the proposed procedure allows increasing the sumrate as compared to coordinated linear transceiver schemes. The gains are larger and significant in two different non-exclusive conditions: as the interference level increases or when the number of antennas is low.
dc.format.extent14 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
dc.subject.lcshMIMO systems
dc.subject.otherMIMO interference channel
dc.subject.otherHeterogeneous transceivers
dc.subject.otherImproper Gaussian signaling
dc.subject.otherWwidely linear precoding
dc.subject.otherWidely linear estimation
dc.subject.otherWeighted sum-rate maximization
dc.titleCoexisting linear and widely linear transceivers in the MIMO interference
dc.typeArticle
dc.subject.lemacSistemes MIMO
dc.contributor.groupUniversitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
dc.identifier.doi10.1109/TSP.2015.2489604
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7296681
dc.rights.accessOpen Access
local.identifier.drac17544559
dc.description.versionPostprint (author's final draft)
local.citation.authorLagen, S.; Agustin, A.; Vidal, J.
local.citation.publicationNameIEEE transactions on signal processing
local.citation.volume64
local.citation.number3
local.citation.startingPage652
local.citation.endingPage665


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