Wireless WANs satisfy both mobile and stationary applications. Components, therefore, vary depending on the technology and configuration of the wireless WAN. A satellite-based wireless WAN, for example, has different components than a cellular-based system.
Users of wireless WANs operate small and portable devices. This is because access to the network is available over much wider areas, and the users must carry their devices with them. For example, a business traveler can easily carry a small PDA or mobile phone and access e-mail while riding in a taxi from the airport to a hotel. Figure 7-1 illustrates the types of user devices most common to wireless WANs.