[Discuss-gnuradio] ofdm_sync_sc_cfb_impl.cc and sync methods used in practical

Hello,

I was going thru the implementation of ofdm_sync_sc_cfb_impl.cc. As it says,
it implements

[1] Schmidl, T.M. and Cox, D.C., "Robust frequency and timing
synchronization for OFDM", Communications, IEEE Transactions on, 1997.

with modified normalization.

However I was wondering that in industry, which method is used dominantly
Auto-correlation based or Cross-correlation based.
I went thru a couple of papers which states pros and cons of both the
methods, however it is not clear to me which method is dominant and why ?

Sumit



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