AirLive AirMax DUO Lite - Manual (Page 82)

4. Wireless and WAN Settings
AirLive AirMax DUO Lite User’s Manual 74
The random backoff used by the access point is a configurable parameter. To describe
the random delay, a "Minimum Contention Window" (ECWMin) and a "Maximum
Contention Window" (ECWMax) is defined.
ECWmin: The value specified for the Minimum Contention Window is the
upper limit of a range for the initial random backoff wait time. The number
used in the random backoff is initially a random number between 0 and the
number defined for the Minimum Contention Window.
ECWmax: If the first random backoff time ends before successful
transmission of the data frame, the access point increases a retry counter,
and doubles the value of the random backoff window. The value specified in
the Maximum Contention Window is the upper limit for this doubling of the
random backoff. This doubling continues until either the data frame is sent or
the Maximum Contention Window size is reached.