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Coexisting linear and widely linear transceivers in the MIMO interference
dc.contributor.author | Lagén Morancho, Sandra |
dc.contributor.author | Agustín de Dios, Adrián |
dc.contributor.author | Vidal Manzano, José |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2016-04-08T12:04:34Z |
dc.date.available | 2016-04-08T12:04:34Z |
dc.date.issued | 2016-01 |
dc.identifier.citation | Lagen, 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.issn | 1053-587X |
dc.identifier.uri | http://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.abstract | Recent 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.extent | 14 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica |
dc.subject.lcsh | MIMO systems |
dc.subject.other | MIMO interference channel |
dc.subject.other | Heterogeneous transceivers |
dc.subject.other | Improper Gaussian signaling |
dc.subject.other | Wwidely linear precoding |
dc.subject.other | Widely linear estimation |
dc.subject.other | Weighted sum-rate maximization |
dc.title | Coexisting linear and widely linear transceivers in the MIMO interference |
dc.type | Article |
dc.subject.lemac | Sistemes MIMO |
dc.contributor.group | Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
dc.identifier.doi | 10.1109/TSP.2015.2489604 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7296681 |
dc.rights.access | Open Access |
local.identifier.drac | 17544559 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Lagen, S.; Agustin, A.; Vidal, J. |
local.citation.publicationName | IEEE transactions on signal processing |
local.citation.volume | 64 |
local.citation.number | 3 |
local.citation.startingPage | 652 |
local.citation.endingPage | 665 |
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