September 2003
Intermediate to advanced
304 pages
8h 39m
English
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802.11g: Like 802.11b, only Faster
Turbo charge your wireless network without leaving your 802.11b users in the cold.
At the time of this writing, the 802.11g specification has just been ratified by the IEEE. 802.11g uses the OFDM encoding of 802.11a in the 2.4 GHz band, and also falls back to DSSS to maintain backwards compatibility with 802.11b radios. This means that raw speeds of 54 Mbps (20 to 25 Mbps data) are achievable in the 2.4 GHz band, all while keeping backwards compatibility with existing 802.11b gear. This is a very promising technology—so promising, in fact, that the lack of ratification didn’t stop some manufacturers from shipping gear that used the draft standard, even before it was ratified.
Pros
Very high data rates of up to 54 Mbps.
Backwards compatibility with the phenomenally popular 802.11b offers a simple upgrade path for existing users.
802.11g uses the same band as 802.11b, so existing antennas and feed lines can be reused.
Cons
Slightly more expensive than 802.11b, but prices are expected to fall as more equipment ships.
As it uses the 2.4 GHz ISM band, 802.11g will have to contend with many other devices, leading to more interference in crowded areas.
Recommendation
If you are building a network from scratch, strongly consider the benefits of 802.11g. It allows existing 802.11b users to continue to use the network, while providing a significant speed boost for 802.11g users. While it is a very new technology, reports from early adopters look very good. Apple ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.