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    Multi-Antenna OFDM System Using Coded Wavelet with Weighted Beamforming

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    14_01_0356_0361.pdf (829.9Kb)
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    Publication date
    2014-04
    Author
    Anoh, Kelvin O.O.
    Asif, Rameez
    Abd-Alhameed, Raed A.
    Rodriguez, Jonathan
    Noras, James M.
    Jones, Steven M.R.
    Hussaini, Abubakar S.
    Keyword
    Beamforming, MIMO, Wavelet, Orthogonal Frequency Division Multiplexing (OFDM), ISI, FFT, LTE, Beam-weight
    Rights
    © 2014 Radioengineering Society; Czech Republic. Reproduced in accordance with the publisher's self-archiving policy. This work is licensed under a Creative Commons Attribution 3.0 Unported License.
    Peer-Reviewed
    Yes
    
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    Abstract
    A major drawback in deploying beamforming scheme in orthogonal frequency division multiplexing (OFDM) is to obtain the optimal weights that are associated with information beams. Two beam weighting methods, namely co-phasing and singular vector decomposition (SVD), are considered to maximize the signal beams for such beamforming scheme. Initially the system performance with and without interleaving is investigated using coded fast Fourier transform (FFT)-OFDM and wavelet-based OFDM. The two beamforming schemes are applied to the wavelet-based OFDM as confirmed to perform better than the FFT-OFDM. It is found that the beam-weight by SVD improves the performance of the system by about 2dB at the expense of the co-phasing method. The capacity performances of the weighting methods are also compared and discussed.
    URI
    http://hdl.handle.net/10454/8423
    Version
    Published version
    Citation
    Anoh K, Asif R, Abd-Alhameed R et al (2014) Multi-Antenna OFDM System Using Coded Wavelet with Weighted Beamforming. Radio Engineering. 24(1): 356-361.
    Link to publisher’s version
    http://www.radioeng.cz/fulltexts/2014/14_01_0356_0361.pdf
    Type
    Article
    Collections
    Engineering and Informatics Publications

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