Performance analysis of zero-IF MIMO OFDM transceivers with IQ imbalance

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    This contribution analytically studies the influence of IQ mismatch on the performance of multiple-antenna orthogonal frequency division multiplexing (OFDM) systems based on he zero-IF architecture. First a system model for such a multiple-input multiple-output (MIMO) OFDM system experiencing both transmitter (TX) and receiver (RX) IQ mbalance is derived. This is used to obtain analytical expressions for the probability of error in symbol detection for MIMO OFDM systems in Rayleigh faded multipath channels. The derived results can be used to find matching specifications for the TX- and RX-branches for different multicarrier MIMO systems. It is concluded that in fading channels RX IQ imbalance is on average more destructive than TX IQ imbalance. Additionally, it is concluded that the addition of extra RX antennas is beneficial to reduce the dependence on RX IQ imbalance, but increases at the same time the impact of TX IQ imbalance.
    Originele taal-2Engels
    Pagina's (van-tot)9-19
    Aantal pagina's11
    TijdschriftJournal of Communications
    Volume2
    Nummer van het tijdschrift7
    DOI's
    StatusGepubliceerd - 2007

    Vingerafdruk

    Transceivers
    Orthogonal frequency division multiplexing
    Antennas
    Multipath propagation
    Fading channels
    Transmitters
    Specifications

    Citeer dit

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    title = "Performance analysis of zero-IF MIMO OFDM transceivers with IQ imbalance",
    abstract = "This contribution analytically studies the influence of IQ mismatch on the performance of multiple-antenna orthogonal frequency division multiplexing (OFDM) systems based on he zero-IF architecture. First a system model for such a multiple-input multiple-output (MIMO) OFDM system experiencing both transmitter (TX) and receiver (RX) IQ mbalance is derived. This is used to obtain analytical expressions for the probability of error in symbol detection for MIMO OFDM systems in Rayleigh faded multipath channels. The derived results can be used to find matching specifications for the TX- and RX-branches for different multicarrier MIMO systems. It is concluded that in fading channels RX IQ imbalance is on average more destructive than TX IQ imbalance. Additionally, it is concluded that the addition of extra RX antennas is beneficial to reduce the dependence on RX IQ imbalance, but increases at the same time the impact of TX IQ imbalance.",
    author = "T.C.W. Schenk and E. Fledderus and P.F.M. Smulders",
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    Performance analysis of zero-IF MIMO OFDM transceivers with IQ imbalance. / Schenk, T.C.W.; Fledderus, E.; Smulders, P.F.M.

    In: Journal of Communications, Vol. 2, Nr. 7, 2007, blz. 9-19.

    Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

    TY - JOUR

    T1 - Performance analysis of zero-IF MIMO OFDM transceivers with IQ imbalance

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    AU - Fledderus, E.

    AU - Smulders, P.F.M.

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    AB - This contribution analytically studies the influence of IQ mismatch on the performance of multiple-antenna orthogonal frequency division multiplexing (OFDM) systems based on he zero-IF architecture. First a system model for such a multiple-input multiple-output (MIMO) OFDM system experiencing both transmitter (TX) and receiver (RX) IQ mbalance is derived. This is used to obtain analytical expressions for the probability of error in symbol detection for MIMO OFDM systems in Rayleigh faded multipath channels. The derived results can be used to find matching specifications for the TX- and RX-branches for different multicarrier MIMO systems. It is concluded that in fading channels RX IQ imbalance is on average more destructive than TX IQ imbalance. Additionally, it is concluded that the addition of extra RX antennas is beneficial to reduce the dependence on RX IQ imbalance, but increases at the same time the impact of TX IQ imbalance.

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