MAC (Medium Access Control) 802.11 Ethernet. Ethernet CSMA/CD (Carrier Sense Multiple Access with Collision Detection). , . , . , , .. . . . , . , . 24.3 24.4. , , .. A B, C B, C D.
(. 24.3). . C B. , , . , . , .
. 24.3.
(. 24.4). . , D. , .
. 24.4.
802.11 Ad Hoc CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) - . Ad Hoc . . 24.5 24.6 CSMA/CA, MACAW. D B, . , .
. 24.5. MACAW
. 24.6. MACAW . RTS . . , CTS. CTS . .
. 24.6. MACAW
|
|
C D. , RTS, , . , , . NAV. D , RTS . CTS, D, NAV. D .
802.11:
. (, , ). . RTS, CTS, ACK. (, );
. (, NAV);
. : , , , ;
. 2312 . , . , - . , , ;
. 16 12 , 4 ;
.