Channel estimation algorithm for space-time block coded OFDM systems

Ilkka Harjula, Aarne Mämmelä

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    10 Citations (Scopus)


    Accurate channel estimates are needed in spacetime coded OFDM systems for decoding purposes. In this paper, a novel channel tracking algorithm based on space-time coded training and information symbols is presented. The algorithm takes advantage of the orthogonality properties of the space-time block codes and it is therefore capable of providing channel estimates without performance degradation due to estimation errors from adjacent channels. The algorithm is tested via Monte Carlo computer simulations using both slowly Rayleigh fading channels and time-invariant frequency selective channels and Alamouti space-time block coding. Computer simulations also show that this simple algorithm outperforms LMS-based approach without additional complexity.
    Original languageEnglish
    Title of host publicationGLOBECOM '03. IEEE Global Telecommunications Conference
    PublisherIEEE Institute of Electrical and Electronic Engineers
    ISBN (Print)978-0-7803-7974-9
    Publication statusPublished - 2003
    MoE publication typeA4 Article in a conference publication
    EventIEEE Global Telecommunications Conference, GLOBECOM '03 - San Francisco, United States
    Duration: 1 Dec 20035 Dec 2003


    ConferenceIEEE Global Telecommunications Conference, GLOBECOM '03
    Abbreviated titleGLOBECOM '03
    Country/TerritoryUnited States
    CitySan Francisco


    • channel estimation
    • OFDM
    • block codes
    • estimation error
    • testing
    • Monte Carlo methods
    • Rayleigh channels
    • space-time codes
    • fading


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