Wireless Access Point
Installing the Wireless AP 37
Fine Tuning Cell Sizes
Adjusting the transmit power allows you to fine tune cell sizes. There are four
standard sizes — Small, Medium, Large, or Max (the default is Max). There is also
an Auto setting that automatically determines the best cell size, and a Manual
setting that allows you to choose your power settings directly.
Figure 14. Transmit Power
Auto Cell Size is an automatic, self-tuning mechanism that balances cell size
between APs to guarantee coverage while limiting the RF energy that could
extend beyond the organizational boundary. Auto Cell uses communication
between APs to dynamically set radio power so that complete coverage is
provided to all areas, yet at the minimum power level required. This helps to
minimize potential interference with neighboring networks. Additionally, APs
running Auto Cell automatically detect and compensate for coverage gaps caused
by system interruptions. To enable the Auto Cell Size feature, go to “RF Power
and Sensitivity” on page 360.
There are two ways of performing Auto Cell Size—by band (Multichannel Auto
Cell) or by channel (this is the default version). Auto Cell by channel adjusts the
size of two or more neighboring AP radios that are on the same channel (Figure 15
A and B). Multichannel Auto Cell adjusts cell sizes of neighboring radios on the
same band (2.4GHz or 5GHz) even if they are on different channels. A potential
application of Autocell by Band is depicted in Figure 15 B and C. In this example,
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