Avaya AP-4 User Manual page 127

Interfaces
covering the same small area would result in a low-density cell, even
though in both cases the actual area did not change — only the number of
Access Points covering the area changed.
In a typical office, a high density area consists of a number of
Access Points installed every 20 feet and each Access Point generates a
small radio cell with a diameter of about 10 feet. In contrast, a typical
warehouse might have a low density area consisting of large cells (with a
diameter of about 90 feet) and Access Points installed every 200 feet.
Figure 4-7: Low Density vs. Ultra High Density Network
The Distance Between Cells parameter supports five values: Large,
Medium, Small, Minicell, and Microcell.
Avaya Wireless AP-4/AP-5 User's Guide 4-43