2008-10-17
Benefits of Wireless
Wireless broadband provides Internet access to mobile devices in addition to allowing network operators to extend their networks beyond the range of their wired connections. For our purposes, two-way radio is the most sensible approach to wireless broadband, but other methods (such as infrared light or visible signaling) are also possible. Connecting your computer to the Internet (or a local network) by radio offers several advantages over connecting the same computer through a wired connection. First, wireless provides convenient access for portable computers; it’s not necessary to find a cable or network data outlet. And second, it allows a user to make a connection from more than one location and to maintain a connection as the user moves from place to place. For network managers, a wireless connection makes it possible to distribute access to a network without the need to string wires or cut holes through walls.
In practice, access without cables means that the owner of a laptop or other portable computer can walk into a classroom, a coffee shop, or a library and connect to the Internet by simply turning on the computer and running a communication program. Depending on the type of wireless network you’re using, you might also be able to maintain the same connection in a moving vehicle.
When you’re installing your own network, it’s often easier to use Wi-Fi links to extend your network and your Internet connection to other rooms because a wired system requires a physical path for the cables between the network router or switch and each computer. Unless you can route those cables through a false ceiling or some other existing channel, this almost always means that you must cut holes in your walls for data connectors and
feed wires inside the walls and under the floors. A radio signal that passes through those same walls is often a lot neater and easier.
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