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Wireless Network Standards |
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Wireless
Networking
Standards
802.11
is the
wireless standard
developed by the IEEE group. While there are several
802.11
standards, consumers are
primarily aware of two with a couple of others that may not have been
truly embraced.
802.11b has been
the most popular standard up until recently, and the market was
flooded early with
802.11b
routers and
network
cards. Since then, a few others have emerged and if you're planning a
network
,
you'll need to consider their benefits and costs when deciding what
option is best for your home or office. Planning your network in advance can save you time and money in the future.
|
Standard
|
Frequency
|
Range
|
Speed
|
|
802.11b
|
2.4
GHz
|
150
feet
|
11Mbps
|
|
802.11a
|
5
GHz
|
80-100
feet
|
54
Mbps
|
|
802.11g
|
2.4
GHz
|
150
feet
|
54
Mbps
|
|
802.11n
|
2.4
or 5 GHz
|
160
feet
|
200
Mbps
|
What
to Buy?
If
you're going to buy a router and some
network
ing
cards today, you probably want to buy an
802.11g
router. The
802.11g standard is
backward compatible with the widely used
802.11b
devices. So if you have a mixture of the two in your home or office,
the G router can handle them both.
802.11a
offers a speed boost over
802.11b,
but because it operates on a different frequency it is not backward
compatible with B or G. The higher frequency seems to also have an
effect on indoor range. This standard never took a strong hold
because
802.11b had already
saturated the market with hardware that would not work with the newer
and faster
802.11a devices.
What
will the future bring?
If
the
802.11
standards
have taught us anything, they have taught us that WiFi is an evolving
entity. The newer and faster
802.11n
standard set to launch in early 2007 promises backward compatibility
with B and G, while offering increased range and quadrupled speeds.
Using MIMO (multiple input, multiple output antennas), this standard
holds a lot of promise for homes and offices that want to unplug
their devices and finally be able to enjoy the freedom of mobility
without taking a hit on performance.
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| Authored by: David
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