Performance impact of IQ mismatch in direct-conversion MIMO OFDM transceivers

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    Abstract

    This contribution analytically studies the influence of transmitter (TX) as well as receiver (RX) IQ mismatch on the performance of multiple-antenna OFDM systems based on direct-conversion. Analytical expressions are derived for the probability of error for MIMO OFDM systems in both nonfaded and Rayleigh faded channels. The results can be used to derive matching specifications for the TX- and RX-branches. 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 RX IQ imbalance dependence, but increases the TX IQ imbalance impact
    Original languageEnglish
    Title of host publicationProceedings of the 2007 IEEE Radio and Wireless Symposium (RWS 2007) 9-11 January 2007, Long Beach, California, USA
    Place of PublicationLong Beach, California, USA
    PublisherInstitute of Electrical and Electronics Engineers
    Pages329-332
    ISBN (Print)1-4244-0445-2
    Publication statusPublished - 2007
    Eventconference; RWS 2007, Long Beach, California, USA; 2007-01-09; 2007-01-11 -
    Duration: 9 Jan 200711 Jan 2007

    Conference

    Conferenceconference; RWS 2007, Long Beach, California, USA; 2007-01-09; 2007-01-11
    Period9/01/0711/01/07
    OtherRWS 2007, Long Beach, California, USA

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