- This topic has 7 replies, 4 voices, and was last updated 10 years, 7 months ago by 
Ravil.
 
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March 13, 2015 at 12:16 pm #18643
Abdullah Baig
ParticipantDear Members
Currently, I am working on FSK Signal generation in radio over fiber system.My Goal is to optimize the system on 9 or 11 or 12 Gbit/s. But good results are obtained on 8Gbit/s system Bit Rate.
As shown in the picture in attachement.
Please guide me… How can i obtain good results on 11 or 12 Gbit/s. - 
March 13, 2015 at 7:38 pm #18647
Ravil
ParticipantHi Abdullah,
What are the minimum BER requirements for your designed system? (based on Rec. ITU-T, etc.) Trying to understand what is your goal?
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March 14, 2015 at 4:21 am #18655
Abdullah Baig
ParticipantDear Ravil
Uptill now, we have not set the minimum BER requirements.However, it should be less than the BER that is achieved at 8Gbit/s. Actually we want to optimize the system on 11 or 12Gbit/s system bitrate. Because 8Gbit/s is already achieved.Please Find our reference research Paper in attachment.
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March 14, 2015 at 4:22 am #18657
Abdullah Baig
ParticipantPlease guide us how is it possible to optimize the system at 11Gbit/s or 12Gbit/s
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March 14, 2015 at 1:03 pm #18666
ferasParticipanttry to reduce the noise , by using amplifier or by improving the simulate condition
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March 15, 2015 at 8:58 pm #18727
Ajay Vyas
ParticipantYou can yuse optimization tool to get the min BER
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March 16, 2015 at 11:59 pm #18788
Ravil
ParticipantHi Abdullah!
In general, there are 2 ways you can try to handle your issue:
1.Check possible distortions due to dispersion in optical fiber.
2.Try to adopt other coding for your scheme and observe the impact. - 
March 17, 2015 at 12:03 am #18789
Ravil
ParticipantFollow up questions:
Is there any connection b/w MZM and coupler in Fig.1 of the document you attached? Is there any error correction technique used?
 
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