Share a channel among competing senders.
- A successful sender s “reserves” the channel for 2ft.
- A successful sender s “reserves” the channel for ft.
send(frame) loop while channel busy skip transmit(frame) if not collision return wait random backoff
send(frame)
loop
while channel busy
wait random backoff
transmit(frame)
if not collision
return
wait random backoff
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ρ | = | 100 m network / 2·109 m/sec |
= | 0.5·10-7 sec | |
= | 50 nsec |
This page last modified on 2012 November 13. |