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Test your wireless LAN knowledge!

802.11a a Viable Alternative

(0 votes)

Written by Jim Geier

Monday, 02 April 2007

When deciding upon which wireless LAN technology to use, you might be interested in reading my recent article comparing 802.11a and 802.11b/g. The range of 802.11a is better than what many have touted over the past few years. Because of better capacity than either 802.11b or 802.11g, consider 802.11a as a possible alternative when deploying wireless LANs.

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Absolutely right

davidb77380 (Registered) 2007-07-16 16:36:02

I agree -- range is not an issue. Anyone who has deployed enough commercial WLANs knows you can rarely run 2.4GHz radios at more than 20mW to keep co-channel interference in check. At that power level, 802.11b or g will have no more (and generally less) range than 11a.

Another 11a advantage that simplifies deployments is the larger number of non-overlapping channels (at least 8 and usually 12-13 depending on the vendor).

Also, because of the greater number of non-overlapping channels, there is virtually no co-channel interference. And because of that, 802.11a smokes b or g in real world environments.

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