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Queues automatically provide minimum transmission delays for video, voice,
multimedia and critical applications. The values can be adjusted further
manually:
Minimum Contention Window (milliseconds): This value is input
to the initial random backoff wait time algorithm for retry of a
data frame transmission. The backoff wait time will be generated
between 0 and this value. If the frame is not sent, the random
backoff value is doubled until the value reaches the number
defined by CWMax (below). The CWMin value must be lower
than the CWMax value. The contention window scheme helps to
avoid frame collisions and determine priority of frame
transmission. A shorter window has a higher probability
(priority) of transmission.
Maximum Contention Window (milliseconds): This value is the
upper limit to random backoff value doubling (see above).
Arbitration Inter-Frame Space (milliseconds): Specifies additional
time between when a channel goes idle and the AP/client sends
data frames. Traffic with a lower AIFSN value has a higher
priority.
Transmission Opportunity (milliseconds): The maximum interval
of time an AP/client can transmit. This makes channel access
more efficiently prioritized. A value of 0 means only one frame
per transmission. A greater value means higher priority.
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