Wireless Array
34 Installing the Wireless Array
Sharp Cell
This patented Xirrus RF management option automatically creates more
intelligently defined cells and improves performance by creating smaller, high-
throughput cells. By dynamically limiting each cell to a defined boundary (cell
size), the trailing edge bleed of RF energy is reduced, thus minimizing
interference between neighboring Wireless Arrays or other Access Points. To
enable the Sharp Cell feature, go to “RF Power & Sensitivity” on page 336.
Roaming Considerations
Cells should overlap approximately 10 - 15% to accommodate client roaming.
Figure 15. Overlapping Cells
Allocating Channels
Because the Wireless Array is a multi-channel device, allocating the best channels
to radios is important if peak performance is to be maintained.
Automatic Channel Selection
We recommend that you allow the Array to make intelligent channel allocation
decisions automatically. In the automatic mode, channels are allocated
dynamically, driven by changes in the environment. Auto Channel assignment is
performed by scanning the surrounding area for RF activity on all channels, then
automatically selecting and setting channels on the Array to the best channels
available. This function is typically executed when initially installing Arrays in a
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