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    A Simplified Improvement on the Design of QO-STBC Based on Hadamard Matrices

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    Paper 24 Anoh 2014.pdf (691.0Kb)
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    Publication date
    2014-06
    Author
    Anoh, Kelvin O.O.
    Abd-Alhameed, Raed A.
    Dama, Yousef A.S.
    Jones, Steven M.R.
    Keyword
    QO-STBC, Hadamard matrix
    Rights
    © 2014 Scientific Research Publishing. Reproduced in accordance with the publisher's self-archiving policy.
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    In this paper, a simplified approach for implementing QO-STBC is presented. It is based on the Hadamard matrix, in which the scheme exploits the Hadamard property to attain full diversity. Hadamard matrix has the characteristic that diagonalizes a quasi-cyclic matrix and decoding matrix that are diagonal matrix permit linear decoding. Using quasi-cyclic matrices in designing QO-STBC systems require that the codes should be rotated to reasonably separate one code from another such that error floor in the design can be minimized. It will be shown that, orthogonalizing the secondary codes and then imposing the Hadamard criteria that the scheme can be well diagonalized. The results of this simplified approach demonstrate full diversity and better performance than the interference-free QO-STBC. Results show about 4 dB gain with respect to the traditional QO-STBC scheme and performs alike with the earlier Hadamard based QO-STBC designed with rotation. These results achieve the consequent mathematical proposition of the Hadamard matrix and its property also shown in this study.
    URI
    http://hdl.handle.net/10454/8066
    Version
    published version paper
    Citation
    Anoh KOO, Abd-Alhameed RA, Dama YAS and Jones RMS (2014). A Simplified Improvement on the Design of QO-STBC Based on Hadamard Matrices. International Journal of Communications, Network and System Sciences, 7: 37-42.
    Link to publisher’s version
    http://dx.doi.org/10.4236/ijcns.2014.71005
    Type
    Article
    Collections
    Engineering and Digital Technology Publications

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