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Wimax_RoF link

(joined April 2014)
Participant

I try to develop the Wimax -Rof link with 3.5 GHz frequency at 54 Mbps data rate. when I connect the Tx & Rx without channel the output response is good. ans with RoF link output response is very poor.
It mean the parameters of link are not optimize I try this with Universal DSP block but still the out constellation is not proper
Please check my project file . It is correct of same thing wrong.

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Responses (7):

    • #19221
      Ajay Vyas
      Participant

      I try to develop the Wimax -Rof link with 3.5 GHz frequency at 54 Mbps data rate. when I connect the Tx & Rx without channel the output response is good. ans with RoF link output response is very poor.
      It mean the parameters of link are not optimize I try this with Universal DSP block but still the out constellation is not proper
      Please check my project file . It is correct of same thing wrong.

      Attachments:
    • #19237
      Profile Photo
      Damian Marek
      Participant

      I see that you are using the OptiSystem 12 versions of the OFDM components. Do you have access to OptiSystem 13.0? It is very recommended to use the new components for mod/demod.

      Regards

      +1
    • #19243
      Ajay Vyas
      Participant

      Yeas I have Optisystem 13.0 & 13.2 version. I try with update block of OFDM modulator & Demodulator but still poor response. Please modify with new version I can access it
      Thanks
      I am also try with same

    • #21157
      Ajay Vyas
      Participant

      I was change the parameters . I get the constellation diagram but there was some error in BER graph & Eye diagram please check it. Please confirm the ROF link

      • #21170
        Profile Photo
        Damian Marek
        Participant

        I see that you are still using the OptiSystem 12 OFDM components, they are functioning well in your project, but in the future I would recommend the newer ones.

        Using the eye diagram analyzer in this way has been discussed in other threads and is not advisable as the OFDM signal is not in an OOK format. Try the BER Test Set instead.

        Regards

    • #21162
      Ajay Vyas
      Participant
    • #21163
      Ajay Vyas
      Participant

      please download form the link

    • #21183
      Ajay Vyas
      Participant

      Thank for your prompt reply . I will try with BER test & OFDM new component

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