| http://www.w3.org/ns/prov#value | - The method of claim 1, wherein transmitting during said second period of time includes: transmitting codewords using said second coding scheme; and wherein said second coding scheme is a coding scheme that does not require channel information derived from the signal in a time period priori to said second time period at a decoder to decode the transmitted codewords, at least 30% of the tones used d
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