User manual

Managing Network Interfaces
39 Wavion
SDMA mode
Wavion’s SDMA technology sends two concurrent data streams from the base station to two
different users. This doubles the downlink capacity of each base station . The feature must be
installed prior to enabling it. Please refer to Installing the SDMA Feature.
SDMA will work with CPE that are connected to the WBS with an SNR higher than 15dB, and
when the CPE Downlink modulation is above 5.5Mbps in 802.11b mode or 54Mbps when working
in 802.11g protocol.
When two WBS are connected through Self-backhaul, the SDMA feature will work only towards
the access part and not on the Self-Backhaul link itself.
The feature has limitations which justifies the ability to enable and disable the feature according
to the application:
◊ Long Range links: When the Range parameter in the Status and Configuration
section (in the Wireless tab) is set to a value of 10Km or 15Km, the SDMA feature
is disabled automatically.
◊ VoIP: SDMA doubles the traffic in the downlink direction. When VoIP is the main
application implemented in the system, symmetrical, two-way traffic is needed.
Because of the different mechanisms this feature uses, it is recommended to
disable the feature.
Saving Changes
Click Apply.
Click Save.
Wireless Activity
Figure 3.6 Wireless Activity Page