• DocumentCode
    1057810
  • Title

    Measuring I/Q Impairments in WiMAX Transmitters

  • Author

    Angrisani, Leopoldo ; Napolitano, Aniello ; Vadursi, Michele

  • Author_Institution
    Dipt. di Inf. e Sist., Univ. degli Studi di Napoli Federico II, Naples
  • Volume
    58
  • Issue
    5
  • fYear
    2009
  • fDate
    5/1/2009 12:00:00 AM
  • Firstpage
    1299
  • Lastpage
    1306
  • Abstract
    This paper presents a new method for measuring the I /Q impairments affecting the worldwide interoperability for microwave access (WiMax) transmitters through the analysis of the signal acquired through a general-purpose I /Q receiver. Based on a model of the effects of the I /Q impairments on the output signal that is suitable for orthogonal frequency-division multiplexing (OFDM) systems like WiMax, the method is designed to correctly take into account the peculiarities of systems compliant with the IEEE 802.16-2004 standard, such as the potentially noxious effects of the impairments on signal normalization and threshold decisions. The results of the experiments carried out on the standard-compliant signals are given.
  • Keywords
    OFDM modulation; WiMax; radio transmitters; I-Q impairments; IEEE 802.16-2004 standard; OFDM systems; WiMax transmitters; orthogonal frequency-division multiplexing systems; standard-compliant signals; worldwide interoperability for microwave access; $I/Q$ impairments; orthogonal frequency-division multiplexing (OFDM); transmitter testing; transmitter troubleshooting; worldwide interoperability for microwave access (WiMAX);
  • fLanguage
    English
  • Journal_Title
    Instrumentation and Measurement, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9456
  • Type

    jour

  • DOI
    10.1109/TIM.2008.2009141
  • Filename
    4738377
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1057810