Alvarion BreezeACCESS EZ AU-EZ, System Manual

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Chapter 4 - Operation and Administration Menus and Parameters
BreezeACCESS EZ AU-EZ 110 System Manual
the inter-frame spacing is reduced and unicast data frames are transmitted
without any contention period (burst mode is not activated on
broadcasts/multicasts).
The Burst Mode is available only if Burst Mode is supported by the Sub-Band in
use. For information on how to view the Sub-Bands supported by the unit and the
supported parameters' values and options, refer to
Section 4.2.2.4 .
4.2.6.5.9.1 Burst Mode Option
The Burst Mode Option enables or disables the Burst Mode operation.
The default is Enable.
4.2.6.5.9.2 Burst Mode Time Interval
The Burst Mode Time Interval defines the burst size, which is the time in which
data frames are sent immediately without contending for the wireless medium.
The range is 1 to the value of the Maximum Burst Duration defined for the
Sub-Band.
The default is 5 milliseconds or the value of Maximum Burst Duration defined for
the Sub-Band (the lower of the two values).
4.2.6.5.10 Adaptive Modulation
The Adaptive Modulation algorithm enables adapting the modulation level of
transmitted data to the prevailing conditions of the applicable radio link. The
algorithm provides Access Units with simultaneous, adaptive support for multiple
Subscriber Units at different modulation levels, as transmission's modulation
level decisions are made separately for each associated SU.
Link quality fluctuates due to various environmental conditions. Dynamically
switching between the possible modulation levels increases the probability of
using the maximum modulation level suitable for the current radio link quality at
any given moment.
4.2.6.5.10.1 Adaptive Modulation Option
This submenu allows users to enable/disable the Adaptive Modulation Algorithm.
The default selection is Enable.
4.2.6.5.10.2 Adaptive Modulation Algorithm In Use
This submenu allows users to choose between the basic Adaptive Modulation
algorithm and the Statistics-Based Rate Control algorithm.

Adaptive Modulation : The decisions made by the Adaptive Modulation
algorithm for the modulation level to be used are based on multiple
parameters, including information on received signal quality (SNR) that is