- Preamble might not be present in the frame that you defined.
- There might be another part of the frame resembling the preamble which makes the preamble detection wrong.
OFDM Synchronisation Example Not Working
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I have been trying to create my own OFDM synchronisation model in Simulink and I have based my design off of the Matlab example. I noticed that for the standard message being sent the example works perfectly but if I change the message to simply be a binary sequence of all 1's or all 0's then the synchronisation no longer works. When i try sending these bits, the Preamble Start Location is rarely found and results in almost no frames being detected. Could someone please explain to me why this is happening and how I can stop it from doing so?
Thanks, Callum
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Answers (1)
Siriniharika Katukam
on 29 Aug 2019
Hi
There might be few reasons in this case of wrong synchronization like
Further, try adding few ramp up bits at the start of the frame which improves the probability of preamble detection.
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