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Full Name | ali |
Organization | wsi |
Job Title | student |
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i attach constellation+BER result
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i said,”in section ofdm mod. no appear item pilot symbols ” I mean, change the parameters IN ofdm modulator
but appear pilot symbols in section BER test set
if possible Changes you saying apply in sent my file?
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i use optisystem 13.
in section ofdm mod. no appear item pilot symbols .
if possible Please help clear
thanks
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i do not have key but do if format hard Problem solved
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hi
You will have no problem using version 13
Version 13 to use
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in section “BER TEST set properties\ofdm parameters\pilot symbols” i do change pilot symbols and change other parameters in the section but no better result.
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hi alitsu
To resolve the problem with the length of the fiber, and even more, what should I do?
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hi
Why file attached with high O.S.N.R but is bad performance? What are the defect?
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hi alitsu
some questions
1- bit rate is set in two places, one in the global parameters and other in the PRBS GEN
What’s the difference?
is have a relationship with toghter?
Because if change bit rate in global parameters result BER is different
2-One advantage of ofdm set cyclic prefix for avoid isi
Where should determine this parameter?i change in ofdm mod. but i did not see change in the BER
3-where i do download optisystem 13.0.3 ? because i have v. 13.0.2
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Very good’ve described.
Thank you
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hi alitsu
you said:The reason for the BER=1 in one of the channels is the symbol rotation problem
But the constellation diagram does not show large spin.
The number 110 seems a little difficult to guess.
You can give me a little guide?
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Hi alistu
No, I mean, you said it was not
I mean, the question was why the symbol (1) in the third quarter numbers did you?
Do you come from experimentation to -145 number? Or did the calculations?
thanks
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hello alistu
How did Marking symbol?
Why did you symbol into these numbers?
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thank you alistu
Is simulation file in this case that would help me do you know?