
The 802.11 MAC Protocol…
NAV=NetworkAllocationVector,aninternalremindertokeep
quietforacertainperiodoftime
• The use of virtual channel sensing using CSMA/CA
– RTS/CTS contain the period of transaction (packet+ack transmission length)
– C is within range of A –waits for the data length in RTS
– D is not within range of A –wait for the data length in CTS
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