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| n |
Basically
CSMA/CA
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| n |
Sense
media before transmission, if free, transmit
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| n |
Defer:
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wait
until end of current transmission, plus fixed delay (WaveLAN
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InterFrame
Space, WIFS) of 60 msec
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apply
random backoff procedure: pick number between 0 and 31
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(antenna
slot number S)
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each
slot corresponds to 23 ms
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wait
S*23 ms, sense media again, if busy, double backoff range
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until
we reach range 0-255
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drop
packet after 15 attempts
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| n |
If
station has more than one packet to send: wait WIFS
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plus
backoff-period in range 0-15 (avoid monopolization)
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