Multiple carriers in wireless communications - curse or blessing?

    Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

    Uittreksel

    The use of multi-carrier techniques is a natural choice when regarding wireless systems with high bandwidths and for which the application environment exhibits severe multipath propagation. These techniques provide a way to cope with and benefit from the time-dispersive channel. This, however, comes at the cost of a higher sensitivity to imperfections in the analogue radio frequency front-end. This paper illustrates the sensitivity of the most frequently used multi-carrier technique, i.e. ortho gonal frequency division multiplexing (OFDM), to three of the main impairments: phase noise, IQ imbalance and nonlinearities. Furthermore, it is shown that the use of digital signal processing can largely compensate the effects of these non-idealities, overcoming the disadvantages of the use of multi-carrier techniques.
    Originele taal-2Engels
    Pagina's (van-tot)112-123
    Aantal pagina's12
    TijdschriftNERG : Tijdschrift van het Nederlands Elektronica- en Radiogenootschap
    Volume70
    Nummer van het tijdschrift4
    StatusGepubliceerd - 2005

    Vingerafdruk

    Multipath propagation
    Communication
    Phase noise
    Digital signal processing
    Orthogonal frequency division multiplexing
    Bandwidth
    Defects

    Citeer dit

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    title = "Multiple carriers in wireless communications - curse or blessing?",
    abstract = "The use of multi-carrier techniques is a natural choice when regarding wireless systems with high bandwidths and for which the application environment exhibits severe multipath propagation. These techniques provide a way to cope with and benefit from the time-dispersive channel. This, however, comes at the cost of a higher sensitivity to imperfections in the analogue radio frequency front-end. This paper illustrates the sensitivity of the most frequently used multi-carrier technique, i.e. ortho gonal frequency division multiplexing (OFDM), to three of the main impairments: phase noise, IQ imbalance and nonlinearities. Furthermore, it is shown that the use of digital signal processing can largely compensate the effects of these non-idealities, overcoming the disadvantages of the use of multi-carrier techniques.",
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    Multiple carriers in wireless communications - curse or blessing? / Schenk, T.C.W.; Smulders, P.F.M.; Fledderus, E.

    In: NERG : Tijdschrift van het Nederlands Elektronica- en Radiogenootschap, Vol. 70, Nr. 4, 2005, blz. 112-123.

    Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

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    AB - The use of multi-carrier techniques is a natural choice when regarding wireless systems with high bandwidths and for which the application environment exhibits severe multipath propagation. These techniques provide a way to cope with and benefit from the time-dispersive channel. This, however, comes at the cost of a higher sensitivity to imperfections in the analogue radio frequency front-end. This paper illustrates the sensitivity of the most frequently used multi-carrier technique, i.e. ortho gonal frequency division multiplexing (OFDM), to three of the main impairments: phase noise, IQ imbalance and nonlinearities. Furthermore, it is shown that the use of digital signal processing can largely compensate the effects of these non-idealities, overcoming the disadvantages of the use of multi-carrier techniques.

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