Robust and accurate frequency and timing synchronization using chirp signals

    Research output: Contribution to journalArticleScientificpeer-review

    27 Citations (Scopus)

    Abstract

    We propose a new robust and accurate synchronization procedure using a training sequence composed of chirp signals. We use a new integer frequency estimation algorithm and propose a new combination of a known fractional frequency offset estimation algorithm and timing synchronization algorithm. The training sequence is composed of one up and two down chirp symbols, also known as Newman phases. The integer frequency offset estimation algorithm uses the effect of timing and frequency offsets on the matched filter outputs of the chirp signals. Autocorrelation and reversed autocorrelation are used to acquire the timing instant and the fractional frequency offset. We present the complete timing and frequency synchronization procedure and study the output signals of the autocorrelation and reversed autocorrelation algorithms. Finally, we check the performance of the synchronization procedure via Monte Carlo simulation in several multipath channels. Our algorithms are accurate and more robust compared to previously published state-of-the art algorithms.
    Original languageEnglish
    Pages (from-to)115-123
    Number of pages9
    JournalIEEE Transactions on Broadcasting
    Volume55
    Issue number1
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Synchronization
    Autocorrelation
    Frequency estimation
    Matched filters
    Multipath propagation

    Keywords

    • Chirp signals
    • OFDM
    • preamble
    • single carrier
    • synchronization

    Cite this

    @article{17804e71da764c0b8efd218760f367e2,
    title = "Robust and accurate frequency and timing synchronization using chirp signals",
    abstract = "We propose a new robust and accurate synchronization procedure using a training sequence composed of chirp signals. We use a new integer frequency estimation algorithm and propose a new combination of a known fractional frequency offset estimation algorithm and timing synchronization algorithm. The training sequence is composed of one up and two down chirp symbols, also known as Newman phases. The integer frequency offset estimation algorithm uses the effect of timing and frequency offsets on the matched filter outputs of the chirp signals. Autocorrelation and reversed autocorrelation are used to acquire the timing instant and the fractional frequency offset. We present the complete timing and frequency synchronization procedure and study the output signals of the autocorrelation and reversed autocorrelation algorithms. Finally, we check the performance of the synchronization procedure via Monte Carlo simulation in several multipath channels. Our algorithms are accurate and more robust compared to previously published state-of-the art algorithms.",
    keywords = "Chirp signals, OFDM, preamble, single carrier, synchronization",
    author = "Sandrine Boumard and Aarne M{\"a}mmel{\"a}",
    note = "Project code: 6679",
    year = "2009",
    doi = "10.1109/TBC.2008.2008712",
    language = "English",
    volume = "55",
    pages = "115--123",
    journal = "IEEE Transactions on Broadcasting",
    issn = "0018-9316",
    publisher = "IEEE Institute of Electrical and Electronic Engineers",
    number = "1",

    }

    Robust and accurate frequency and timing synchronization using chirp signals. / Boumard, Sandrine; Mämmelä, Aarne.

    In: IEEE Transactions on Broadcasting, Vol. 55, No. 1, 2009, p. 115-123.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Robust and accurate frequency and timing synchronization using chirp signals

    AU - Boumard, Sandrine

    AU - Mämmelä, Aarne

    N1 - Project code: 6679

    PY - 2009

    Y1 - 2009

    N2 - We propose a new robust and accurate synchronization procedure using a training sequence composed of chirp signals. We use a new integer frequency estimation algorithm and propose a new combination of a known fractional frequency offset estimation algorithm and timing synchronization algorithm. The training sequence is composed of one up and two down chirp symbols, also known as Newman phases. The integer frequency offset estimation algorithm uses the effect of timing and frequency offsets on the matched filter outputs of the chirp signals. Autocorrelation and reversed autocorrelation are used to acquire the timing instant and the fractional frequency offset. We present the complete timing and frequency synchronization procedure and study the output signals of the autocorrelation and reversed autocorrelation algorithms. Finally, we check the performance of the synchronization procedure via Monte Carlo simulation in several multipath channels. Our algorithms are accurate and more robust compared to previously published state-of-the art algorithms.

    AB - We propose a new robust and accurate synchronization procedure using a training sequence composed of chirp signals. We use a new integer frequency estimation algorithm and propose a new combination of a known fractional frequency offset estimation algorithm and timing synchronization algorithm. The training sequence is composed of one up and two down chirp symbols, also known as Newman phases. The integer frequency offset estimation algorithm uses the effect of timing and frequency offsets on the matched filter outputs of the chirp signals. Autocorrelation and reversed autocorrelation are used to acquire the timing instant and the fractional frequency offset. We present the complete timing and frequency synchronization procedure and study the output signals of the autocorrelation and reversed autocorrelation algorithms. Finally, we check the performance of the synchronization procedure via Monte Carlo simulation in several multipath channels. Our algorithms are accurate and more robust compared to previously published state-of-the art algorithms.

    KW - Chirp signals

    KW - OFDM

    KW - preamble

    KW - single carrier

    KW - synchronization

    U2 - 10.1109/TBC.2008.2008712

    DO - 10.1109/TBC.2008.2008712

    M3 - Article

    VL - 55

    SP - 115

    EP - 123

    JO - IEEE Transactions on Broadcasting

    JF - IEEE Transactions on Broadcasting

    SN - 0018-9316

    IS - 1

    ER -