WHY WIRELESS?

To dive into a specific technology at this point is getting a bit ahead of the story, though.
Wireless networks share several important advantages, no matter how the protocols are designed, or even what type of data they carry.
The most obvious advantage of wireless networking is mobility. Wireless network users can connect to existing networks and are then allowed to roam freely. A mobile telephone user can drive miles in the course of a single conversation because the phone connects the user through cell towers. Initially, mobile telephony was expensive. Costs restricted its use to highly mobile professionals such as sales managers and important executive decision makers who might need to be reached at a moment's notice regardless of their location. Mobile telephony has proven to be a useful service, however, and now it is relatively common in the United States and extremely common among Europeans. 1
As long as the wireless users remain within the range of the base station, they can take advantage of the network. Commonly available equipment can easily cover a corporate campus; with some work, more exotic equipment, and favorable terrain.
Wireless networks typically have a great deal of flexibility, which can translate into rapid deployment. Wireless networks use a number of base stations to connect users to an existing network.