• DocumentCode
    1794338
  • Title

    Performance comparison of different 8QAM constellations for the use in flexible optical networks

  • Author

    Nolle, M. ; Frey, Felix ; Elschner, Robert ; Schmidt-Langhorst, Carsten ; Napoli, Antonio ; Schubert, Colja

  • Author_Institution
    Fraunhofer Inst. for Telecommun., Heinrich Hertz Inst., Berlin, Germany
  • fYear
    2014
  • fDate
    9-13 March 2014
  • Firstpage
    1
  • Lastpage
    3
  • Abstract
    We investigate the influence of DAC resolution and pulse shaping on the system performance of different 8QAM constellations. Furthermore, we experimentally show that a circular constellation outperforms the commonly used 8QAM constellation by 0.7 dB in terms of OSNR sensitivity at a BER of 3.8·10-3.
  • Keywords
    digital-analogue conversion; optical fibre networks; optical modulation; quadrature amplitude modulation; telecommunication standards; 8QAM constellation; BER; DAC resolution; OSNR sensitivity; flexible optical network; gain 0.7 dB; pulse shaping; Bit error rate; Modulation; Optical filters; Optical noise; Optical transmitters; Signal resolution; Signal to noise ratio;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Optical Fiber Communications Conference and Exhibition (OFC), 2014
  • Conference_Location
    San Francisco, CA
  • Print_ISBN
    978-1-5575-2994-7
  • Type

    conf

  • DOI
    10.1364/OFC.2014.M2B.1
  • Filename
    6887111
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1794338