LDPC-QAM-OFDM based FSO Link
Hello sir,
This is Peerla Naveen currently pursuing a BTECH degree from VIT University, Chennai. From the examples, I designed the LDPC-Qam-Ofdm FSO link. When I Simulate it I can get the proper constellation diagram but I can’t find the changes in BER values it remains constant for Whatever conditions are given.
I am attaching the zip file below pls look into it and try to help me in solving it.
Responses (1):
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Hello sir,
This is Peerla Naveen currently pursuing a BTECH degree from VIT University, Chennai. From the examples, I designed the LDPC-Qam-Ofdm FSO link. When I Simulate it I can get the proper constellation diagram but I can’t find the changes in BER values it remains constant for Whatever conditions are given.
I am attaching the zip file below pls look into it and try to help me in solving it. -
Dear Peerla,
You need to reduce the FSO range to about 200m also you need to set properly the BERT bit rate and the n/k parameter in the LDPC to allow correct bit rate for the QAM Sequence Generator.
Regards,
Ahmad
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