, . IEEE 802.11 : , , , , -. ( , , , ). DCF MAC-, .
S/, Ethernet CSMA/CD, . , , , , . . , , . . 7.6 , S/.
. , . (, S ) (Short Interframe Space, SIFS). (DIFS) DCF. IFS ; , DIFS, .
, , , , . Slot-Time, , -PDU. [0, 7]. , . , . , , , , - , , , . .
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, , . , , , ACK, EIFS (Extended IFS), DIFS. EIFS [0, 15]. ( ) 22+ i -1, i = 1,..Imax. , EIFS , . , , ARQ .
, , SA , (. 7.7). .
SA , , , Duration NAV ( , Network Allocation Vector) . Duration .
, . , RTS/CTS. . 7.8 .
, , , -, . , RTS . , RTS/CTS , . , RTS- 20 , TS 14 , 2300 .
, 802.11 RTS/CTS, RTS/CTS. , , , RTS/CTS , . , RTS/CTS, .
, . - LLC, .
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, . , , , , .