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    MIMO discrete wavelet transform for the next generation wireless systems

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    Publication date
    2013
    Author
    Asif, Rameez
    Ghazaany, Tahereh S.
    Abd-Alhameed, Raed A.
    Noras, James M.
    Jones, Steven M.R.
    Rodriguez, Jonathan
    See, Chan H.
    Keyword
    Multiple-Inputs Multiple-Outputs, MIMO; Beamforming; Discrete Wavelet Transform; DWT; Zero Forcing; ZF; Intersymbol Interference; ISI; Minimum Mean Squared Error; MMSE
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    Study is presented into the performance of Fast Fourier Transform (FFT) and Discrete Wavelet Transform (DWT) and MIMO-DWT with transmit beamforming. Feedback loop has been used between the equalizer at the transmitter to the receiver which provided the channel state information which was then used to construct a steering matrix for the transmission sequence such that the received signals at the transmitter can be combined constructively in order to provide a reliable and improved system for next generation wireless systems. As convolution in time domain equals multiplication in frequency domain no such counterpart exist for the symbols in space, means linear convolution and Intersymbol Interference (ISI) generation so both zero forcing (ZF) and minimum mean squared error (MMSE) equalizations have been employed. The results show superior performance improvement and in addition allow keeping the processing, power and implementation cost at the transmitter which has less constraints and the results also show that both equalization algorithms perform alike in wavelets and the ISI is spread equally between different wavelet domains.
    URI
    http://hdl.handle.net/10454/9617
    Version
    No full-text available in the repository
    Citation
    Asif R, Ghazaany TS, Abd-Alhameed RA, Noras JM, Jones SMR, Rodriguez J and See CH (2013) MIMO discrete wavelet transform for the next generation wireless systems. International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering. 2(10): 4791-4800.
    Link to publisher’s version
    http://www.rroij.com/open-access/mimo-discrete-wavelet-transform-for-the-nextgeneration-wireless-systems.pdf
    Type
    Article
    Collections
    Engineering and Informatics Publications

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