User Guide

Wi-Fi Array
54 Installing the Wi-Fi Array
If you are installing many units in close proximity to each other, we recommend
that you use Auto Cell Size; otherwise, reduce the transmit power using manual
settings to avoid excessive interference with other Arrays or installed APs. See
also, “Coverage and Capacity Planning” on page 50.
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 Wi-Fi Arrays or other Access Points. To enable
the Sharp Cell feature, go to “RF Power & Sensitivity” on page 279. For more
information about this feature, see the Xirrus Sharp Cell Application Note in the
Xirrus Library
.
Roaming Considerations
Cells should overlap approximately 10 - 15% to accommodate client roaming.
Figure 17. Overlapping Cells
Allocating Channels
Because the Wi-Fi Array is a multi-channel device, allocating the best channels to
radios is important if peak performance is to be maintained.
ROAMING
10 - 15% overlap