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VLC QAM-OFDM: Bad Output

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(joined December 2020)
Participant

Hi,
I’m working a high data rate VLC QAM-OFDM systems by using LED as transmitter in Optisystem 15. But I cannot get 4-QAM constellation diagram at OFDM demodulator and the output power looks low after PIN photodiode. Can someone help to take a look my designed model??
I will attached my model, please help to review…
Thanks

Responses (1):

    • #68612
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      Y.L. Seow
      Participant

      Hi,
      I’m working a high data rate VLC QAM-OFDM systems by using LED as transmitter in Optisystem 15. But I cannot get 4-QAM constellation diagram at OFDM demodulator and the output power looks low after PIN photodiode. Can someone help to take a look my designed model??
      I will attached my model, please help to review…
      Thanks

    • #68615
      Profile Photo
      Ahmad Atieh
      Moderator

      Dear Seow,
      please email me your project as a zip file to my email at ahmad.atieh@optiwave.com. I’ll try to provide feedback to the cause of the issue.
      The forum doesn’t allow you to load OptiSystem projects.
      Regards,
      Ahmad

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