On Tue, Feb 21, 2012 at 1:06 PM, Florian Schlembach < florian.schlemb...@tu-ilmenau.de> wrote:
> There is a coarse and a fine frequency offset correction. The fine >> correct makes sure that the subcarrier is centered in the bin; the >> coarse adjusts for an integer number of subcarriers off from the center >> frequency. By default, the OFDM receiver will correct for some number of >> subcarrier bins (it's either +/-5 or +/-10; I can't remember). If your >> radios have a frequency offset that is greater than the maximum number >> of subcarriers specified here, the receiver cannot receive the symbols >> correctly. >> > > How about the fine frequency offset correction? How can I turn it on? For > instance, how do I have to modify the benchmark/tunnel scripts in order to > do that? it is on by default. You can't receive OFDM unless you are doing that kind of correction; the ICI would be awful if you didn't. Tom
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