802.11n Ratified

At long last, the IEEE (Institute of Electrical and Electronics Engineers) has
ratified the 802.11n
standard
. In a press release quietly issued late in the day on Friday, September
11th, the IEEE announced that its Standards Board had ratified the IEEE
802.11n-2009 amendment, “defining mechanisms that provide significantly improved data
rates and ranges for wireless local area networks (WLANs).”

The news came as no surprise to vendors and industry watchers, as the IEEE had been
open about its September
timetable
for ratification.

The finalized standard, which includes a 560-page 802.11n amendment, makes good on its
promise of backward-compatibility with earlier drafts and also adds some new
capabilities.

The Wi-Fi
Alliance
, which certifies 802.11 products for interoperability, affirmed in late July that its
certification programs
would not have to change as a result of the impending
ratification.

The seven-year journey to ratification officially involved more than 400 individuals
ranging from equipment and silicon suppliers, service providers, systems integrators,
consultant organizations, and academic institutions from more than 20 countries.

Paul Nikolich, IEEE 802 LAN/MAN Standards Committee Chairman said in Friday’s press
release, “Everyone involved in the 802.11n process–and no one more than Bruce Kraemer
‘Chair of the IEEE Wireless LAN Working Group’, whose strong leadership has been
instrumental from the start–deserves congratulations because this is a key data
communications milestone and a good example of the consensus building environment 802
provides for its participants. The amendment will enable a dramatic leap forward in WLAN
scalability with only a modest associated rise in costs for the industry and end
users.”

Publication of the amendment is scheduled for mid-October.

Enterprising vendors

Many segments of the market, such as schools and universities, and
home and small business users, had already grown comfortable enough with 802.11n-draft
2.0 to deploy networks using it. But, for enterprises, there has been more redolence
toward early adoption.

“The ratification is most significant for enterprises. A lot of universities have
already adopted 802.11n, after receiving assurance that the final standard would be
backward compatible. This final ratification puts the issue to rest for lots of
customers,” Mike Tennefoss, Head of Strategic Marketing at Aruba Networks, one of the
companies that sits on the 802.11n committee, told Wi-Fi Planet today. “In the
broader enterprise, there was fear of last-minute changes ‘to the standard’. This
ratification is really good for corporate customers. Ratification was the last barrier
holding up the actual widespread adoption of 11n in the general enterprise market. We
think it will open up the market significantly.”

While the ratification is big news, it is also, in many ways a small detail. It’s a
bit like learning that a person has finally been officially named CEO after running a
company successfully and publicly for several years, but with a different job title.

“It doesn’t change anything for us,” says Tennefoss. “We will of course certify under
the finally ratified standard, so that we will eliminate that draft citation on the logo.
It doesn’t change our development plans or our marketing strategy. It removes the
impediments that were preventing customers that were really interested in
high-performance, high-security systems from moving forward. We expect more activity in
sales, but it’s not changed in technical ways.”

Tennefoss also points out that for Aruba, the lack of a final standard hasn’t slowed
down sales this year, but the presence of one may provide an additional boost. “We had a
record quarter, a record year, a record three quarters in a row,” says Tennefoss.
“There’s a very large surge in demand in the way of new orders, a lot for 11n, so I would
say we would like to see that trend continue.”

Better, stronger, faster

Looking ahead, improvements to 11n should include both speed and energy
efficiency.

“We do sit on the n committee and there is work under way on the next higher speed
version of 11n. As we look forward into the coming years, we’ll see enhancements to
enable it to go faster on the technical side. The target is comparable to gigabit
Ethernet, ultimately,” says Tennefoss. “On the other side, on the product design side, I
think ratification is basically going to lead to more stratification of the market, where
there are lower-priced all the way up to high-performance solutions. The standard has
removed any concerns that there will be last-minute changes; it will be safer to move
forward with lower-priced devices shipped in higher volume.”

But what about your iPhone or BlackBerry? When will it get 802.11n?

“Right now, the benefit of using g is power consumption,” says Tennefoss. “There are
no ultra-low power 11n wireless handsets, phones, scanners, barcode scanners, or any
other device on the market. The pipeline doesn’t have 11n devices to replace the lower
power 11g that are on the market today. We know the chipset vendors are working on it. I
know the iPod touch has an 11n chip in it, but can you get the required battery time? I
don’t know when it will happen, but it will happen. That will result in market transition
from g to n-battery life.”

Trading up

With the advent of the new standard, a couple of vendors have launched “cash for
clunkers-themed” promotions to encourage legacy users to upgrade their equipment. Read the rest at Wi-Fi Planet.

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