Iterative (turbo processing) receiver design of OFDM systems in the presence of carrier frequency offset

Huan Nguyen, Jinho Choi, Huaglory Tianfield

    Research output: Contribution to journalArticle

    Abstract

    In this paper, based on the principle of turbo processing, we propose two iterative receiver schemes for carrier frequency offset (CFO) compensation in orthogonal frequency division multiplexing (OFDM) systems. Our CFO compensation designs, one in time domain and the other in frequency domain, are based on joint estimation of time-varying channel and CFO. In our schemes, the random CFO problem, a challenge for conventional pilot-aid methods, can be effectively solved using iterative (turbo processing) schemes. Furthermore, our comparative study shows that time domain compensation (TDC) is simpler to implement but frequency domain cancellation consisting of an iterative equalizer (FDC-IE) has better bit error rate (BER) performance.

    Original languageEnglish
    Pages (from-to)82-93
    Number of pages12
    JournalInternational Transactions on Systems Science and Applications
    Volume6
    Issue number1
    Publication statusPublished - 1 May 2010

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    Keywords

    • carrier frequency offset (CFO)
    • orthogonal frequency division multiplexing (OFDM)
    • iterative equalizer (IE)
    • turbo processing

    Cite this

    Nguyen, H., Choi, J., & Tianfield, H. (2010). Iterative (turbo processing) receiver design of OFDM systems in the presence of carrier frequency offset. International Transactions on Systems Science and Applications, 6(1), 82-93.