Achievable data rates and power allocation for frequency-selective fading relay channels with imperfect channel estimation

dc.contributor.authorDing, Yanwu
dc.contributor.authorUysal, Murat
dc.date.accessioned2013-06-04T13:05:21Z
dc.date.available2013-06-04T13:05:21Z
dc.date.issued2012-12-31
dc.descriptionThis is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en_US
dc.description.abstractIn this article, we investigate the information-theoretical performance of a cooperative orthogonal frequency division multiplexing (OFDM) system with imperfect channel estimation. Assuming the deployment of training-aided channel estimators, we derive a lower bound on the achievable rate for the cooperative OFDM system with amplify-and-forward relaying over frequency-selective Rayleigh fading channels. The bound is later utilized to allocate power among the training and data transmission phases. Numerical results demonstrate that the proposed power allocation scheme brings between 5 and 19% improvement depending on the level of signal-to-noise ratio and relay locations.en_US
dc.description.versionPeer reviewed
dc.identifier.citationDing, Yanwu; Uysal, Murat. 2012. Achievable data rates and power allocation for frequency-selective fading relay channels with imperfect channel estimation. EURASIP Journal on Wireless Communications and Networking, Article Number 372 pp.1-10en_US
dc.identifier.issn1687-1499
dc.identifier.otherWOS:000316825300001
dc.identifier.urihttp://dx.doi.org/10.1186/1687-1499-2012-372
dc.identifier.urihttp://hdl.handle.net/10057/5695
dc.language.isoen_USen_US
dc.publisherSpringeren_US
dc.relation.ispartofseriesEURASIP Journal on Wireless Communications and Networking;Article Number 372
dc.subjectAchievable rateen_US
dc.subjectAmplify-and-forward relayingen_US
dc.subjectChannel estimationen_US
dc.subjectPower allocationen_US
dc.subjectOFDMen_US
dc.titleAchievable data rates and power allocation for frequency-selective fading relay channels with imperfect channel estimationen_US
dc.typeArticleen_US
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