Transmission Cooperative Strategies for MIMO-OFDM Heterogeneous Networks

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dc.contributor.authorAli, Syed Saqlain
dc.contributor.authorCastanheira, Daniel
dc.contributor.authorSilva, Adao
dc.contributor.authorGameiro, Atilio
dc.coverage.issue2cs
dc.coverage.volume24cs
dc.date.accessioned2015-06-29T11:33:40Z
dc.date.available2015-06-29T11:33:40Z
dc.date.issued2015-06cs
dc.description.abstractMobile traffic in cellular networks is increasing exponentially, mainly due to the use of data intensive services like video. One way to cope with these demands is to reduce the cell-size by deploying small-cells along the coverage area of the current macro-cell system. The deployment of small-cells significantly improves indoor coverage. Nevertheless, as additional spectrum licenses are difficult and expensive to acquire it is expected that the macro and small-cells will coexist under the same spectrum. The coexistence of the two systems results in cross-tier/inter-system interference. In this context, we design several interference alignment based techniques for the downlink of heterogeneous networks, in order to cancel the interference generated from macro-cell at small-cell user terminals. More specifically, in this contribution we design interference alignment methods under different levels of inter-system coordination and the constraint that the performance of macro-cell system is kept close to the case where small-cell system is switched-off. Numerical results demonstrate that the proposed methods achieve close to the optimal performance with low overhead.en
dc.formattextcs
dc.format.extent431-441cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2015 vol. 24, č. 2, s. 431-441. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2015.0431en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/41844
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2015/15_02_0431_0441.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectInterference alignmenten
dc.subjectspace-frequency block codesen
dc.subjectheterogeneous networksen
dc.subjectsmall-cellsen
dc.subjectMIMO-OFDMen
dc.subjectdownlinken
dc.titleTransmission Cooperative Strategies for MIMO-OFDM Heterogeneous Networksen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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