• DocumentCode
    2472341
  • Title

    Spectrum sharing of OFDM signals for cognitive radios

  • Author

    Malon, Krzysztof ; Lopatka, Jerzy

  • Author_Institution
    Mil. Univ. of Technol., Warsaw, Poland
  • fYear
    2010
  • fDate
    13-15 Dec. 2010
  • Firstpage
    1
  • Lastpage
    6
  • Abstract
    This paper presents methods of spectral shaping of OFDM signals to enable spectrum sharing with other transmissions. Proposed methods are based on carrier suppression algorithms, using both windowing technique and adaptation of modulating schemes on specific subcarriers. Moreover compatibility of OFDM signals generated by asynchronous transmitters, working in adjacent bandwidth is analyzed. Simulation model was created for these tests to enable observation of BER value when model parameters are changing.
  • Keywords
    OFDM modulation; cognitive radio; error statistics; radio transmitters; BER; OFDM signals; asynchronous transmitters; carrier suppression algorithms; cognitive radios; spectrum sharing; Bandwidth; Bit error rate; Modulation; OFDM; Signal to noise ratio; Transient analysis; Transmitters;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Signal Processing and Communication Systems (ICSPCS), 2010 4th International Conference on
  • Conference_Location
    Gold Coast, QLD
  • Print_ISBN
    978-1-4244-7908-5
  • Electronic_ISBN
    978-1-4244-7906-1
  • Type

    conf

  • DOI
    10.1109/ICSPCS.2010.5709745
  • Filename
    5709745