OOK vs BPSK - Optiwave

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This topic has 3 replies, 2 voices, and was last updated 4 years, 4 months ago by Ahmad Atieh.

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- July 13, 2020 at 12:59 pm #67625
  
  Shivaranjani S
  Participant
  
  Hello. I am working on a VLC project which compares the performance of OOK and BPSK modulation. I have made a simple system with externally modulated LEDs where one setup is modulated at bit rate = symbol rate for OOK and the other setup is modulated at bit rate = 2 * symbol rate for BPSK. I have attached my .osd file below. I expect the BER of BPSK to be better than that of OOK when plotted against OSNR (dB). My results are not consistent with the theoretical results. I am unable to identify the source of this issue. Please help me resolve the problem to get consistent results.
  
  Thank you.
- July 13, 2020 at 1:07 pm #67632
  
  Ahmad Atieh
  Moderator
  
  Hello,
  The symbol rate should equal to the bit rate in both cases.
  The forum doesn’t allow users to upload OptiSystem projects. You may email it as a zip file to my email at ahmad.atieh@optiwave.com
  Regards,
  Ahmad
  - July 13, 2020 at 1:48 pm #67633
    
    Shivaranjani S
    Participant
    
    Hello Ahmad Atieh Sir,
    
    Thank you for the response. I have changed the bit rate. I have mailed you the details of my project and the .osd file. Thanks in advance.
- July 13, 2020 at 3:12 pm #67634
  
  Ahmad Atieh
  Moderator
  
  Hello Shivaranjani,
  I didn’t receive your file. Please make sure that you send it as a zip file.
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