Hi,
Thanks for your reply.
Here are the main Parameters.
Length of fiber= 25 Km
Bit Rate= 5 G Bits/s
No of OFDM Carriers =16
Each carrier has 16 QAM Modulation
This setup is converged with 60 GHz millimeter wave carriers and then after fiber these carriers are detected on OFDM receiver. Its a direct detection system.
The setup works fine for btb and upto 5 Km but when I increase the fiber I got the very bad constellation.
Now I want to compensate this dispersion with DSP code file.
Best regards,
Umar Fraooq