Performance of frequency offset estimation in the presence of IQ imbalance for OFDM direct conversion receivers

Mamiko Inamori, Anas M. Bostamam, Yukitoshi Sanada

    研究成果: Conference contribution

    4 引用 (Scopus)

    抜粋

    In WLAN receivers, a direct conversion architecture has been implemented in recent years. Though this architecture reduces cost and power consumption, it may suffer from direct current (DC) offset and frequency offset. To reduce the effect of DC offset, a frequency offset estimation scheme with a differential filter for orthogonal frequency division multiplexing (OFDM) direct conversion receivers has been proposed. However, the receiver may also suffer from IQ imbalance, which deteriorates the performance of frequency offset estimation. In this paper, the performance analysis of the frequency offset estimation scheme with the differential filter in the presence of IQ imbalance is derived. The numerical results obtained through computer simulations show that the derived analysis provides close approximation to the performance of the frequency offset estimation scheme. It also clarifies the dependency of the mean square error on the waveform of the preamble symbols, which is caused by IQ imbalance.

    元の言語English
    ホスト出版物のタイトルPACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing
    ページ826-831
    ページ数6
    DOI
    出版物ステータスPublished - 2009 12 1
    イベントPACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing - Victoria, BC, Canada
    継続期間: 2009 8 232009 8 26

    出版物シリーズ

    名前IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings

    Other

    OtherPACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing
    Canada
    Victoria, BC
    期間09/8/2309/8/26

    ASJC Scopus subject areas

    • Signal Processing
    • Computer Networks and Communications

    フィンガープリント Performance of frequency offset estimation in the presence of IQ imbalance for OFDM direct conversion receivers' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Inamori, M., Bostamam, A. M., & Sanada, Y. (2009). Performance of frequency offset estimation in the presence of IQ imbalance for OFDM direct conversion receivers. : PACRIM 2009 - 2009 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (pp. 826-831). [5291262] (IEEE Pacific RIM Conference on Communications, Computers, and Signal Processing - Proceedings). https://doi.org/10.1109/PACRIM.2009.5291262