- This topic has 7 replies, 2 voices, and was last updated 10 years, 5 months ago by
Ajay Vyas.
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April 1, 2015 at 2:17 pm #19221
Ajay Vyas
ParticipantI 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. -
April 2, 2015 at 9:15 am #19237
Damian Marek
ParticipantI 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
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April 2, 2015 at 12:12 pm #19243
Ajay Vyas
ParticipantYeas 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 -
May 26, 2015 at 2:28 am #21157
Ajay Vyas
ParticipantI 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
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May 26, 2015 at 9:00 am #21170
Damian Marek
ParticipantI 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
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May 26, 2015 at 3:19 am #21162
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May 26, 2015 at 3:20 am #21163
Ajay Vyas
Participantplease download form the link
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May 26, 2015 at 11:45 pm #21183
Ajay Vyas
ParticipantThank for your prompt reply . I will try with BER test & OFDM new component
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