Acquisition of an unknown hopping code in an ultra-wideband FH-OFDM system

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

    2 Citations (Scopus)

    Abstract

    In this paper, we study methods for code acquisition in a burst-type ultra-wideband (UWB) frequency-hopped (FH) orthogonal frequency division multiplexing (OFDM) system. In the first scenario, the time-frequency code (TFC) that controls the frequency-hopping is assumed to be completely unknown to the receiver, while in the other scenario we make simplifying assumptions with regard to the TFC. Data-aided (DA) decision variable generation method is used, which aims at keeping the acquisition time and training data overhead to a minimum. Parallel and serial receiver algorithms are proposed for the scenarios, and an iterative serial method for acquiring the TFC is developed. While the parallel receiver enables fast detection, in some cases it is unfeasible due to its complexity. The receiver using the low-complexity serial approach needs more information about the TFC to ensure efficient operation. Simulation results prove that it achieves good performance when such conditions exist.
    Original languageEnglish
    Title of host publication2007 4th International Symposium on Wireless Communication Systems
    PublisherIEEE Institute of Electrical and Electronic Engineers
    Pages577-581
    ISBN (Electronic)978-1-4244-0979-2
    ISBN (Print)978-1-4244-0978-5
    DOIs
    Publication statusPublished - 2007
    MoE publication typeA4 Article in a conference publication
    Event4th International Symposium on Wireless Communication Systems, ISWCS’07 - Trondheim, Norway
    Duration: 17 Oct 200719 Oct 2007
    Conference number: 4

    Conference

    Conference4th International Symposium on Wireless Communication Systems, ISWCS’07
    Abbreviated titleISWCS’07
    CountryNorway
    CityTrondheim
    Period17/10/0719/10/07

    Fingerprint

    Frequency hopping
    Iterative methods
    Ultra-wideband (UWB)
    Orthogonal frequency division multiplexing

    Keywords

    • timing synchronization
    • multi-carrier modulation
    • frequency-hopping
    • training signal
    • differential correlation
    • OFDM modulation
    • hopping code

    Cite this

    Hahtola, P., Anttonen, A., & Mämmelä, A. (2007). Acquisition of an unknown hopping code in an ultra-wideband FH-OFDM system. In 2007 4th International Symposium on Wireless Communication Systems (pp. 577-581). IEEE Institute of Electrical and Electronic Engineers . https://doi.org/10.1109/ISWCS.2007.4392406
    Hahtola, Paavo ; Anttonen, Antti ; Mämmelä, Aarne. / Acquisition of an unknown hopping code in an ultra-wideband FH-OFDM system. 2007 4th International Symposium on Wireless Communication Systems. IEEE Institute of Electrical and Electronic Engineers , 2007. pp. 577-581
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    title = "Acquisition of an unknown hopping code in an ultra-wideband FH-OFDM system",
    abstract = "In this paper, we study methods for code acquisition in a burst-type ultra-wideband (UWB) frequency-hopped (FH) orthogonal frequency division multiplexing (OFDM) system. In the first scenario, the time-frequency code (TFC) that controls the frequency-hopping is assumed to be completely unknown to the receiver, while in the other scenario we make simplifying assumptions with regard to the TFC. Data-aided (DA) decision variable generation method is used, which aims at keeping the acquisition time and training data overhead to a minimum. Parallel and serial receiver algorithms are proposed for the scenarios, and an iterative serial method for acquiring the TFC is developed. While the parallel receiver enables fast detection, in some cases it is unfeasible due to its complexity. The receiver using the low-complexity serial approach needs more information about the TFC to ensure efficient operation. Simulation results prove that it achieves good performance when such conditions exist.",
    keywords = "timing synchronization, multi-carrier modulation, frequency-hopping, training signal, differential correlation, OFDM modulation, hopping code",
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    Hahtola, P, Anttonen, A & Mämmelä, A 2007, Acquisition of an unknown hopping code in an ultra-wideband FH-OFDM system. in 2007 4th International Symposium on Wireless Communication Systems. IEEE Institute of Electrical and Electronic Engineers , pp. 577-581, 4th International Symposium on Wireless Communication Systems, ISWCS’07, Trondheim, Norway, 17/10/07. https://doi.org/10.1109/ISWCS.2007.4392406

    Acquisition of an unknown hopping code in an ultra-wideband FH-OFDM system. / Hahtola, Paavo; Anttonen, Antti; Mämmelä, Aarne.

    2007 4th International Symposium on Wireless Communication Systems. IEEE Institute of Electrical and Electronic Engineers , 2007. p. 577-581.

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

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    AB - In this paper, we study methods for code acquisition in a burst-type ultra-wideband (UWB) frequency-hopped (FH) orthogonal frequency division multiplexing (OFDM) system. In the first scenario, the time-frequency code (TFC) that controls the frequency-hopping is assumed to be completely unknown to the receiver, while in the other scenario we make simplifying assumptions with regard to the TFC. Data-aided (DA) decision variable generation method is used, which aims at keeping the acquisition time and training data overhead to a minimum. Parallel and serial receiver algorithms are proposed for the scenarios, and an iterative serial method for acquiring the TFC is developed. While the parallel receiver enables fast detection, in some cases it is unfeasible due to its complexity. The receiver using the low-complexity serial approach needs more information about the TFC to ensure efficient operation. Simulation results prove that it achieves good performance when such conditions exist.

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    Hahtola P, Anttonen A, Mämmelä A. Acquisition of an unknown hopping code in an ultra-wideband FH-OFDM system. In 2007 4th International Symposium on Wireless Communication Systems. IEEE Institute of Electrical and Electronic Engineers . 2007. p. 577-581 https://doi.org/10.1109/ISWCS.2007.4392406