WHP Wireless WHP-1100 - Manual (Page 15)

Wireless users have the same access to network resources as they
would have if they were wired. Such a configuration is often used to
allow roaming, or to extend an existing network into a hard-to-wire
environment.
Figure 2. Single-AP network
Type 3. The third type of network is composed of multiple APs and multiple
stations (Figure 3).
Figure 3. Multiple-AP network
The reasons for having multiple APs installed are:
1. To increase bandwidth in order to boost overall network performance
2. To extend the coverage range
Any other configuration is usually a mix of these commonly used types.
Outdoor Access Point 9