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dc.contributor.authorAnoh, Kelvin O.O.*
dc.contributor.authorChukwu, M.C.*
dc.contributor.authorDama, Yousef A.S.*
dc.contributor.authorAbd-Alhameed, Raed*
dc.contributor.authorOchonogor, O.*
dc.contributor.authorJones, Steven M.R.*
dc.date.accessioned2016-03-11T16:13:15Z
dc.date.available2016-03-11T16:13:15Z
dc.date.issued2015
dc.identifier.citationAnoh KOO, Chukwu MC, Dama YAS et al (2015) A Multi-Antenna Design Scheme based on Hadamard Matrices for Wireless Communications. British Journal of Mathematics and Computer Science. 5(1): 49-64.en_US
dc.identifier.urihttp://hdl.handle.net/10454/7888
dc.descriptionYesen_US
dc.description.abstractA quasi-orthogonal space time block coding (QO-STBC) scheme that exploits Hadamard matrix properties is studied and evaluated. At first, an analytical solution is derived as an extension of some earlier proposed QO-STBC scheme based on Hadamard matrices, called diagonalized Hadamard space-time block coding (DHSBTC). It explores the ability of Hadamard matrices that can translate into amplitude gains for a multi-antenna system, such as the QO-STBC system, to eliminate some off-diagonal (interference) terms that limit the system performance towards full diversity. This property is used in diagonalizing the decoding matrix of the QOSTBC system without such interfering elements. Results obtained quite agree with the analytical solution and also reflect the full diversity advantage of the proposed QO-STBC system design scheme. Secondly, the study is extended over an interference-free QO-STBC multi-antenna scheme, which does not include the interfering terms in the decoding matrix. Then, following the Hadamard matrix property advantages, the gain obtained (for example, in 4x1 QO-STBC scheme) in this study showed 4-times louder amplitude (gain) than the interference-free QOSTBC and much louder than earlier DHSTBC for which the new approach is compared with.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.9734/BJMCS/2015/12616en_US
dc.rights© 2015 The Authors. Published by ScienceDomain International. Reproduced in accordance with the publisher's self-archiving policy.en_US
dc.subjectQO-STBCen_US
dc.subjectSTBC
dc.subjectHadamard matrix
dc.subjectNull interference
dc.subjectFull diversity
dc.subjectMultiple antennas
dc.titleA Multi-Antenna Design Scheme based on Hadamard Matrices for Wireless Communicationsen_US
dc.status.refereedYesen_US
dc.date.Accepted2014-08-27
dc.typeArticleen_US
dc.type.versionPublished versionen_US
refterms.dateFOA2018-07-25T12:39:24Z


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