Home Forums SYSTEM DFE for Coherent System

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    • #12090
      Chi-Hao Cheng
      Participant

      Hi!

      I have been trying to use OptiSystem to simulate a coherent system using high-level modulation format such as 16-QAM with a DFE. However, I am not able to use the OptiSystem’s DFE module for this task and need to use Matlab to process data off-line. I wonder if there is a way to conduct this kind of simulation without using software other than OptiSystem.

      Thanks

    • #12112
      Damian Marek
      Participant

      Hi,

      Is there a specific reason why you can’t use OptiSystem’s electronic equalizer component?

      Let me know if you have a project file that I can troubleshoot as well.

      Regards

    • #12141
      Chi-Hao Cheng
      Participant

      Thanks for the response. I can use the electronic equalizer for OOK system and was not able to use it in a coherent system setting. I would like to use the electronic equalizer for compensate chromatic dispersion but need to develop a Matlab program for this task. If there is some example file for this application, please let me know it.

      Best Regards

      • #12154
        Damian Marek
        Participant

        I’m looking into this for you. Is there a reason why you need to use an electronic equalizer? You could use our digital signal processing component to compensate for chromatic dispersion.

        Regards

    • #12162
      Chi-Hao Cheng
      Participant

      Thanks. I suppose that I can use the DSP component. It will be similar to the Matlab Co-Simulation method I plan to use. Just want to know if electronic equalizer can save us some time.

      Best Regards,

      • #12175
        Damian Marek
        Participant

        Unfortunately I haven’t figured out an easy way to incorporate our electronic equalizer with the 16 QAM signal. The EE was meant for binary type input signals.

        You can disable/enable the types of compensation the DSP component will use though and insert your own Matlab code before or after it.

        Let me know if you run into anymore problems!

    • #12188
      Chi-Hao Cheng
      Participant

      Thanks for looking into this issue.

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