Decision directed scheme for IQ imbalance compensation on OFCDM direct conversion receiver

Tadaaki Yuba, Yukitoshi Sanada

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    Recently, the direct conversion scheme has been actively investigated for the purpose of cost miniaturization and low power consumption of wireless receivers. IQ imbalance is one of the problems for the direct conversion receiver. In the direct conversion receiver, a π/2 phase shifter and a double balance mixer (DBM) for the radio frequency (RF) signal is required. However, it is difficult to obtain tne accurate phase shifter and the linear DBM over broad bandwidth. As a result, the balance between in-phase (I) and quadrature-phase (Q) of the demodulated signals may be lost. In the case of OFCDM modulations, this IQ imbalance causes intercarrier interference (ICI) in the demodulated signals. In this paper, the decision directed scheme for IQ imbalance compensation is proposed.

    Original languageEnglish
    Title of host publication2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005
    Pages1229-1233
    Number of pages5
    Publication statusPublished - 2005 Dec 1
    Event2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005 - Berlin, Germany
    Duration: 2005 Sep 112005 Sep 14

    Publication series

    NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
    Volume2

    Other

    Other2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005
    CountryGermany
    CityBerlin
    Period05/9/1105/9/14

    Keywords

    • Direct conversion
    • IQ imbalance
    • OFCDM

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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  • Cite this

    Yuba, T., & Sanada, Y. (2005). Decision directed scheme for IQ imbalance compensation on OFCDM direct conversion receiver. In 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005 (pp. 1229-1233). [1651637] (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC; Vol. 2).