Home Forums SYSTEM OFDM+QAM

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    • #33938
      mohamed tosson
      Participant

      Hello
      Any one can help me to find the error in this file

    • #34723
      aasif bashir dar
      Participant

      hi,
      this files might help , they are from the optiwave sample s in optiwave 13
      with regards

    • #34868
      Aabid Baba
      Participant

      Hello Mohammad,
      I tried to run your .osd file and it got executed easily. What error are you talking about? Please specify.
      Regards

      • #35550
        mohamed tosson
        Participant

        hello aabid baba
        Thanks for your help but the problems included in i can’t measure the eye diagram, BER and Q-factor, may be the problems in the connection design of the Analyzer.
        Best Regards and thanks for you

    • #35193
      Ranjeet Kumar
      Participant

      Hi mohamed tosson,
      i am uploading the osd file of OFDM qam design of different types.
      One is 4 user unidirectional OFDM PON system.
      Other is OFDM WDM bidirectional system.
      As QAM is a sequence generator like NRZ or RZ whose output is given to OFDM modulator and electrically modulated, after it is converted to optical domain by Mach zendher modulator.
      Hope this may help you.
      Seeking your response.

      • #35551
        mohamed tosson
        Participant

        Hi Ranjeet Kumar
        Thanks for your replay

        Best regards

    • #35194
      Ranjeet Kumar
      Participant

      Sorry for failure of uploading osd file.
      Due to internet connectivity it happens twice.

    • #35201
      Dr. Dhiman Kakati
      Participant

      Unable to open the attached .osd file. problem may be due to I am using Optisystem v13.

      Regards,
      Dhiman

    • #35195
      varinder singh
      Participant

      Hi mohamed tosson,
      i am uploading the osd file of OFDM qam design of different types.
      One is 4 user unidirectional OFDM PON system.
      Other is OFDM WDM bidirectional system.
      https://dru5cjyjifvrg.cloudfront.net/wp-content/uploads/2016/04/DP-64QAM-transmissioin-w-matched-filter.osd
      with regards

    • #35197
      varinder singh
      Participant
    • #35626
      Naazira Badar
      Participant

      Hi all..
      Well I think has Mohammad Tosson has himself mentioned the reason for the error he was facing..and that is incorrect BER analyser connection. I hope he would have done away with the problems he was facing by now.

      regards
      Naazira Badar.

      • #35677
        mohamed tosson
        Participant

        Hi Naszira Badar
        The problem still exists, i want to measure the Q-factor and show the Eye Diagram.
        The problems included in the connection of the Eye analyzer to QAM decoder

    • #35685
      Ranjeet Kumar
      Participant

      Hi,
      As i have mentioned in #Reply #35193, i am uploading the osd file OFDM- QAM pon networks design.
      One is 4 channel unidirectional OFDM pon networks and other is bidirectional OFDM WDM pon.

      Hope this may be beneficial for you.

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