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

Tadaaki Yuba, Yukitoshi Sanada

    研究成果: Conference contribution

    1 被引用数 (Scopus)

    抄録

    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.

    本文言語English
    ホスト出版物のタイトル2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005
    ページ1229-1233
    ページ数5
    出版ステータスPublished - 2005 12 1
    イベント2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005 - Berlin, Germany
    継続期間: 2005 9 112005 9 14

    出版物シリーズ

    名前IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
    2

    Other

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

    ASJC Scopus subject areas

    • 電子工学および電気工学

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