Specifications

DRM - Dynamic Radio Management
Summit WM Series WLAN Switch and Altitude Access Point Software Version 4.1 Technical Reference Guide
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● When clients associate, DRM Standard Power raises the transmit power of data frames to the
maximum, monitors the position of the client, and then adjusts the transmit power to provide the
best possible service.
● When client movement is detected, DRM Standard Power Control will increase data frames to full
power, reevaluate the position of the client, and adjust power again to best service the client.
● DRM Continuously monitors and adjusts the transmit power for data frames to accommodate a very
dynamic RF environment.
● The results of DRM RF Power Management are
● Minimized interference
● Maximum performance for clients
● Maximized ability to reuse channels
● Overall better system performance
● DRM Shaped Power Control reduces the transmit power of all 802.11 frames including management
frames
● This shrinks the entire cell minimizing interference with other APs
● DRM Shaped Power Control does not adjust power to support distant clients
● Once the Cell size is established, client associations do not affect it
● DRM Shaped Power control will adjust the cell size when new APs are brought online or
removed from service
● DRM Shaped Power Control minimizes the co-channel interference between APs.
DRM Automatic Channel Selection
When DRM is enabled for both the Summit WM and for a specific AP then the access point may then
participate in a dynamic channel selection procedure. If a radio within the AP is configured to use a
channel called ‘auto’ then the automatic channel selection procedure occurs under the following
conditions:
● At boot time of the AP,
● When DRM is enabled globally for the system,
● When DRM is enabled for a specific AP, and
● When the ‘ReSync DRM’ button is selected from the UI.
The DRM channel selection algorithm automatically selects channels to minimize interference and
optimize performance. The algorithm requires no central authority and works equally well in both
sparse and dense deployments. DRM devices work in concert with each other selecting the best possible
channel and cell size for any environment.
The DRM channel selection algorithm has the following properties
● fully distributed
● requires no central authority
● scales infinitely
● Accounts for non-DRM devices as well as DRM devices