Notice in Figure 1-11 that the wireless cells, or access points, are connected to
the network by connecting into the hub or switch that has a connection to the rest
of the wired network. Also notice that the clients do not have cables connecting
them to the network. These are wireless clients, and they will get access to the
network through the wireless cell (or access point).
Another option for wireless networks is the use of a radio antenna on or near the
building, which allows one cell to cover the building and the surrounding area. This
approach is best in a campus-type arrangement, where many buildings that need to
be included in the cell are in a close geographical area. This setup does not easily
allow you to connect the buildings by a backbone and physical cables and then to
each building containing the required cells for all its PCs and devices.