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    Correction and compensation of I/Q imbalance and multipath channel for OFDM receivers

    Access Status
    Fulltext not available
    Authors
    Haq, K.
    Chung, Kah-Seng
    Date
    2014
    Type
    Conference Paper
    
    Metadata
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    Citation
    Haq, K. and Chung, K. 2014. Correction and compensation of I/Q imbalance and multipath channel for OFDM receivers, In 9th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP), Jul 23-25 2014, pp. 966-971. Mancherster: IEEE.
    Source Title
    2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014
    DOI
    10.1109/CSNDSP.2014.6923969
    ISBN
    9781479925810
    School
    Department of Electrical and Computer Engineering
    URI
    http://hdl.handle.net/20.500.11937/3609
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents an adaptive scheme in overcoming signal distortion, caused by I/Q imbalance and multipath propagation, in an OFDM receiver. Estimation of I/Q imbalance and channel parameters is performed in the frequency domain with the aid of pilot tones. These estimated values are then used to adjust the gain and phase to reduce the distortion caused by I/Q imbalance. The resulting less distorted signal is then subjected to a simpler post compensation process to remove the effects of the multipath channel and any residue frequency-dependent I/Q imbalance. MATLAB simulations have demonstrated that the proposed approach provides substantial improvements to the system performance.

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