DSSS Physical Medium Dependent (PMD) Sublayer

DSSS Physical Medium Dependent (PMD) Sublayer
As with the FHSS and infrared Physical layers, the DSSS PMD performs the actual transmission
and reception of PPDUs under the direction of the PLCP. To provide this service, the
PMD interfaces directly with the wireless medium (that is, the air) and provides DSSS modulation
and demodulation of the frame transmissions