802.11 (PHY), 802.11 MAC. PHY, :
- PHY 802.11 (frequency hopping) 2,4 ;
- PHY 802.11 (direct sequence) 2,4 ;
- PHY 802.l1b 2,4 ;
- PHY 802.11 (orthogonal frequency division multiplexion, OFDM) 5 ;
- (extended rate physical (ERP) layer) 802.11g 2,4 .
802.11 MAC, , , MAC. PHY , . MAC PHY , 802.l1b, 802.11 802.11g.
802.11 :
- Physical Layer Convergence Procedure (PLCP). .
- Physical Medium Dependent (PMD). , .
2.7 , .
2.7 - PHY
(Open System Interconnection, OSI)
PLCP (handshaking layer), MAC (MAC protocol data units, MPDU) - PMD, . PLCP PMD 802.11.
, , , , : .
, , , , , , , , . , , . , . ( ) , ; , . (whitening) . (descrambler) . ; , .