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dc.contributor.authorAgustín de Dios, Adrián
dc.contributor.authorVidal Manzano, José
dc.contributor.authorMuñoz Medina, Olga
dc.contributor.authorRodríguez Fonollosa, Javier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationAgustin, A. [et al.]. Decentralized weighted sum rate maximization in MIMO-OFDMA femtocell networks. A: IEEE Global Communications Conference. "2011 IEEE The Second Globecom Workshop on Femtocell Networks". 2012, p. 1-5.
dc.description.abstractWe propose a decentralized strategy for downlink interference management in overlaid MIMO femtocell-macrocell deployments operating in the same band under OFDMA access. The resource allocation, consisting of MIMO precoders at the macro base station (MBS) and femto access points (FAPs) and possibly the resource block (RB) assignment, is designed to maximize the Weighted Sum Rate (WSR) of the system. Being the overall problem non-convex, we propose to solve it in a decentralized way where each transmitter designs its resource allocation using interference prices exchanged with other transmitters (FAPs and MBS) by exploiting the wired backhaul connection. The problem includes a rate restriction per FAP that accounts for the limited bitrate provided by the Internet Service Provider (ISP) wired backhaul. Two efficient algorithms are provided for: 1) optimizing MIMO precoders and 2) optimizing both MIMO precoders and RB assignment. Numerical results compare decentralized strategies based on pricing exchange and on pure competition in dense FAP deployments.
dc.format.extent5 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
dc.subject.lcshMIMO communication
dc.subject.lcshRadiofrequency interference
dc.subject.lcshOrthogonal frequency division multiplexing
dc.titleDecentralized weighted sum rate maximization in MIMO-OFDMA femtocell networks
dc.typeConference report
dc.contributor.groupUniversitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorAgustin, A.; Vidal, J.; Muñoz, O.; R. Fonollosa, Javier
upcommons.citation.contributorIEEE Global Communications Conference
upcommons.citation.publicationName2011 IEEE The Second Globecom Workshop on Femtocell Networks
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