Wireless Broadband
Basics
by: Jeremy Maddock
Wireless broadband is a general term used for the technology
that is able to gain access to the internet wirelessly, and at
high bandwidth speeds. Wireless broadband is available on
virtually any digital device, so long as it has the proper
connectivity hardware. Such hardware can easily be attached to
most PDAs and laptop computers.
What is the technology behind wireless broadband services?
One of the most popular and well known wireless technology
standards is Wi-Fi (Wireless Fidelity), which allows users to
access the internet over a wireless Local Area Network. The speed
and range of Wi-Fi, however, is severely limited. There is another
wireless connectivity standard, called is WiMAX, which is
considerably more advanced.
WiMAX is a protocol by which signals are sent to wireless
broadband users. A WiMAX base station can theoretically beam a
signal as far as 50km (31 miles), meaning that a single station
could potentially cover an entire city (unlike Wi-Fi, which is
only available in "hotspots").
Although WiMAX are networks are available in several major
metropolitan areas in the US, base stations are very expensive to
build, and aren’t cost effective in less densely populated areas.
Because of this limitation, WiMAX technology is not yet available
in most non-urban regions.
Although WiMAX has been a major technological achievement,
wireless broadband certainly doesn’t stop there. There are a
number of other cutting edge wireless protocols currently in
development. The most notable of these is a new protocol called
xMax, which is similar to WiMAX, but a lot more efficient. It can
cover a broader range at a lower cost, by piggybacking on radio
frequencies. Although xMax is not yet available to the public, it
will most likely be launched within the next couple of years.