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dc.contributor.authorGjendemsjø, Anderseng
dc.contributor.authorØien, Geir Egileng
dc.contributor.authorHolm, Henrikeng
dc.contributor.authorAlouini, Mohamed-Slimeng
dc.contributor.authorGesbert, Davideng
dc.contributor.authorHole, Kjell Jørgeneng
dc.contributor.authorOrten, Påleng
dc.date.accessioned2014-12-19T08:31:04Z
dc.date.available2014-12-19T08:31:04Z
dc.date.issued2008-01-09eng
dc.identifier.issn1687-1472en_US
dc.identifier.urihttps://hdl.handle.net/1956/8985
dc.description.abstractLink adaptation, in particular adaptive coded modulation (ACM), is a promising tool for bandwidth-efficient transmission in a fading environment. The main motivation behind employing ACM schemes is to improve the spectral efficiency of wireless communication systems. In this paper, using a finite number of capacity achieving component codes, we propose new transmission schemes employing constant power transmission, as well as discrete- and continuous-power adaptation, for slowly varying flat-fading channels. We show that the proposed transmission schemes can achieve throughputs close to the Shannon limits of flat-fading channels using only a small number of codes. Specifically, using a fully discrete scheme with just four codes, each associated with four power levels, we achieve a spectral efficiency within 1 dB of the continuous-rate continuous-power Shannon capacity. Furthermore, when restricted to a fixed number of codes, the introduction of power adaptation has significant gains with respect to average spectral efficiency and probability of no transmission compared to a constant power scheme.en_US
dc.language.isoengeng
dc.publisherSpringeren_US
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/4.0eng
dc.titleRate and power allocation for discrete-rate link adaptationen_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2014-12-19T08:27:21Z
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2014 2008 Anders Gjendemsjø et alen_US
dc.source.articlenumber394124
dc.identifier.doihttps://doi.org/10.1155/2008/394124
dc.identifier.cristin336472
dc.source.journalEURASIP Journal on Wireless Communications and Networking


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