User's Manual

Chapter 4 - Operation and Administration
BreezeACCESSS VL System Manual
4-76
Performance Parameters
The Performance Parameters menu enables defining a series of
parameters that control the method by which traffic is transmitted
through the BreezeACCESS VL wireless access network.
The Performance Parameters menu includes the following parameters:
! RTS Threshold
! Minimum Contention Window
! Maximum Contention Window
! Multicast Modulation Level (AU only)
! Maximum Modulation Level
! Average SNR Memory Factor
! Number of HW Retries
! Burst Mode
! Adaptive Modulation Algorithm
RTS Threshold
The RTS Threshold parameter defines the minimum frame size that
requires an RTS/CTS (Request To Send/Clear To Send) handshake.
Frames whose size is smaller than the RTS Threshold value are
transmitted directly to the wireless link without being preceded with
RTS frames. Setting this parameter to a value larger than the maximum
frame size eliminates the RTS/CTS handshake for frames transmitted
by this unit.
The available values range from 20 to 1600 bytes.
The default value is 60 bytes for SUs and 1600 for AUs. It is
recommended that these values be used to ensure that RTS/CTS is
never used in the AU.