Prmbl Corr (MB-OFDM)

Preamble Correlation is the correlation between the measured preamble and an ideal preamble. It represents an indication of the quality of the preamble. For MB-OFDM Orthogonal Frequency Division Multiplexing: OFDM employs multiple overlapping radio frequency carriers, each operating at a carefully chosen frequency that is Orthogonal to the others, to produce a transmission scheme that supports higher bit rates due to parallel channel operation. OFDM is an alternative tranmission scheme to DSSS and FHSS., this is a linear correlation expressed in percentage as specified in the standard. (See About Opt BHB: Multiband-OFDM.) A value of 100% indicates perfect correlation and a value of 0 indicates no correlation.

Preamble Correlation is a symbol by symbol correlation of the entire preamble, PS physical slot: A unit of time, dependent on the PHY specification, for allocating bandwidth. 802.11: Power save (mode)/FS fixed subscriber: A subscriber station that does not support communications whilst in motion. (Sync) and CE (Channel Estimation), with the individual parts RMS averaged to compute the final result as specified in the standard.

Preamble Correlation is not the average of the Sync Correlation and the CE Correlation. There are 24 (or even 12) symbols of Sync but only 6 symbols of CE. The measurement is not weighted by symbol (all symbols are averaged equally) so the Channel Estimation contributes less.