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802.16: Medium distance wireless networking that could change the world?

By bslade in Technology
Sun Dec 12, 2004 at 03:11:35 PM EST
Tags: Technology (all tags)
Technology

The (sort of) new IEEE 802.16 Metropolitan Area Network standard (MAN) promises to break the cable modem/DSL monopoly on the "last mile" of Internet connectivity to peoples' homes.

With ranges up to 30 miles and speeds up to 70 mbps it seems like a pancea.

While I suspect the actual usable speeds and distances will be considerably less, my real question is where is it? This standard has been in the works for years.


Here's a summary of what 802.16 is from an old Intel 802.16 press release:

The 802.16 standard, which the IEEE modified this [past] January [2003] in its 802.16a amendment covering the 2 GHz to 11 GHz frequencies, is a wireless metropolitan area network technology that will ... provide a wireless extension to cable and DSL for last mile broadband access. It provides up to 31 miles of linear service area range and allows users to get broadband connectivity without needing a direct line of sight to the base station. The wireless broadband technology also provides shared data rates up to 70 Mbps, which is enough bandwidth to simultaneously support more than 60 businesses with T1-type connectivity and hundreds of homes with DSL-type connectivity using a single sector of a base station. A typical base station has up to six sectors.

And some discussion of the implications of 802.16 can be found in a non-online article from Technology Review titled "Why WiMax?" (11/04 Vol. 107, No. 9, P. 20; Roush, Wade) [Note, WiMax is a consumer friendly name for the IEEE 802.16 standard]:

The forthcoming Worldwide Interoperability for Microwave Access (WiMax) metropolitan-area wireless communication standard is expected to put Wi-Fi in the shade. Wi-Fi can transmit signals across up to 100 meters indoors and 400 meters outdoors, but WiMax boasts a maximum transmission range of 50 kilometers at a peak data transfer rate of 70 Mbps.

Furthermore, once industry consensus is reached on such details as WiMax data encryption, [regulated and unregulated] frequency allowances, and multiple-user frequency access, companies will be able to mass-produce WiMax-enabled chips and make WiMax receivers affordable to consumers; the end result could be the replacement of current ISPs with broadband Internet connectivity.

WiMax promises to facilitate wireless communication for new small and mid-sized businesses, the construction of mobile-computing hot spots in areas that lack phone lines, and the expansion of broadband Internet access to impoverished regions. The instigator of the WiMax movement is Intel, which saw a need for Wi-Fi to develop into a carrier-like technology as well as use more, as-yet untapped frequencies. In addition to designing communications processors to exploit these frequencies and delivering the chips as samples to manufacturers, Intel is promoting the WiMax Forum as an industry organization for certifying WiMax-compliant equipment, and is making investments designed to demonstrate WiMax's profit potential through Intel Capital.

The high cost of building a WiMax transmitter network could complicate the technology's rollout. In addition, WiMax equipment manufacturers must address the challenge of achieving the economies of scale necessary for enabling WiMax hardware in the consumer price range.

A more recent and detailed discussion can be found at WiMax starting to make its move (nwfusion.com, June 04)

My comments:

Well, maybe finally, Intel's ventures into non-core technologies will pan out.

It seems like the planning for this is taking forever, especially since it should be a boon to the tech industry. But remember, all government coordination is bad, private enterprise is always more efficient (that's sarcastic folks).

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Poll
Do you think the 802.16 wireless technology will change the world?
o Yes 25%
o No 29%
o Whatever 25%
o It's all a CIA/NSA/NRO/DIA plot! More aluminum foil for my head! 20%

Votes: 44
Results | Other Polls

Related Links
o Intel 802.16 press release
o WiMax starting to make its move
o Also by bslade


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802.16: Medium distance wireless networking that could change the world? | 74 comments (46 topical, 28 editorial, 0 hidden)
WiMax or 3G (2.50 / 2) (#4)
by Stuart Ward on Fri Dec 10, 2004 at 02:52:05 PM EST

You havent commented on the obvious comparisons between WiMax and 3G technology. Both use licenced spectrum as opposed to unlicenced for WiFi, so these will need to be brought to market by someone. Who will do this? well not the Cell (mobile) phone companies they have invested far too much in 3G technology. Perhaps the fixed line telcos and the broadband ISP will step up to the mark? This may happen in the USA but not in europe, all those billions spent on 3G licences only to be surplanted by a diffrent technology.


this will be good (1.00 / 2) (#9)
by auraslip on Fri Dec 10, 2004 at 07:46:35 PM EST

I'm moving in to a new house and i can't afford to pay for broadband. I was worried that no one near enough would have a WiFi network for me to steal. But 30 miles!! I"M NEVER PAYING FOR THE INTERNET AGAIN!
124
Dead in the water, chum (2.55 / 9) (#10)
by trhurler on Fri Dec 10, 2004 at 08:46:17 PM EST

First of all, in any remotely "urban" or even "suburban" area, that's not NEARLY enough bandwidth for a thirty mile radius. Not even for a ten mile radius. So, the only place this will be of much use is out in the boonies. But guess what? There isn't that much money in the boonies. Not only are there fewer people per square mile(and remember, cheap though end user equipment may be, base stations are going to be expensive, so this translates directly to less profit per dollar invested,) but they are on average poorer, less educated, and less interested. Yes, there are certainly plenty of exceptions - well to do, well educated, sensible people who live out in the boonies because they like it that way. That is, there are plenty of them to demonstrate that no generalization is always correct. There are NOT plenty of them in any one area to make a technology like this worth having.

Yes, you might be able to deploy it on the fringes of suburbia. Problem being, that's not a big enough market to be worth most companies' choosing to employ a whole new technology over it.

Dead, I tell you. Hopeless. Whoever thought 70Mbps was even remotely sufficient for a "metropolitan area network" was having a Bill Gates moment. ("640k is more than anyone will ever need.")

Add to this the fact that all the big established players have a good reason NOT to see this deployed(namely, it starts to remove a need for their bigness and establishedness,) and now you've got to hope that some startup will come along and deploy this despite the obvious cash flow problem it will have. Be serious; even if some "visionary" is dumb enough to try it, it won't last.

In the long run, cable is going to suffer the same fate, for much the same reason. As user density goes up, quality goes down, and there's not much cable companies can do about it that is affordable to them. Their infrastructure is inherently unscalable in a way that is not true of infrastructures built on more "traditional" telecom technologies.

Of course, telecom as an industry is fucked, but in a technical sense they've got things at least half right, and have a shot at success over the long haul.

But really, give up on this wireless MAN crap. It isn't delayed so long because of problems with the technology. It is delayed so long because it is an unprofitable idea that won't actually provide worthwhile service in its intended role.

The only way wireless is going to work as an infrastructure is if it is done mostly the same way mobile phone networks operate today, but with more bandwidth. And in fact, I think we're only a few years away from seeing a resurgence of the "connect your computer to your phone" method of connectivity, except digital and with mobile phones. People already do it(some people, that is,) but it will become more common as airtime gets cheaper and bandwidth goes up.

--
'God dammit, your posts make me hard.' --LilDebbie

Where's the killer app? (2.00 / 3) (#15)
by Dr Gonzo on Sat Dec 11, 2004 at 12:29:48 AM EST

Urban areas are already getting fiber run to customers by major bandwidth providers, a medium that provides orders of magnitude more bandwidth than a wireless link while not being susceptible to atmospheric interference and other problems inherent in wireless transmission.

On the other hand, rural areas don't really have the sort of money to justify running these sort of networks out there.

So where does this all fit in?

"I felt the warmth spread across my lap as her bladder let loose." - MichaelCrawford

Oops, accedental +1 (none / 0) (#29)
by Nyarlathotep on Sat Dec 11, 2004 at 07:39:18 PM EST

So you never said how it scales.  There are very good theeoretical wireless protocolls which automatically adjust to population density, and do message passing between local base stations, i.e. you buy a base station, just like with 802.11b, but you don't plug it into DSL, you just let it talk to your neighbors base station.  The point of such a system is that it causes the "last mile" transport to scale with adoption or population growth.. although your land line links from this system need to be manually added too.  The side point of such a system is that end users are paying for the last mile hardware, and hence have the freedom to buy cheaper bandwidth.

I'm guessing 802.16 is not such a protocoll, and hence not likely to be all that revolutionary.
Campus Crusade for Cthulhu -- it found me!

+1; Good idea, expect poor implementation (none / 1) (#34)
by darklordseth on Sat Dec 11, 2004 at 10:18:09 PM EST

Okay, this is how I picture things will go:
  1. 802.16 is quite complete and nicely getting along.
  2. Company gets massive funding from a VC.
  3. VC pushes company into releasing 802.16 tech prematurely.
  4. VC ascertains control over patents regarding the companies 802.16 products.
  5. Due to lack of competition and outrageous pricing ( as set by the VC ), the company will fold.
  6. VC withdraws, having made a few million on the company in question.
  7. 802.16 dies a slow horrible death; Any company trying something similiar gets patent-smacked by the VC, existing hardware poorly constructed with buggy software and no support or repair services available anymore.
  8. 802.16 fades into obscurity.
  9. Anything but profit.
This is a worst case scenario, mind you. More realistically, the VC would turn the company into a sockpuppet and charge outrageous prices for poor hardware and software and close to no support. The standard will become undead; alive yet no one uses it.

70Mb, huh? (none / 0) (#61)
by cdguru on Mon Dec 13, 2004 at 05:18:56 PM EST

Anyone looked into a rural/suburban 70Mbit connection?

T1 isn't much of a problem, but be prepared to pay $600+ a month.

You would need something more than an OC3 (48Mbit I think) and one huge problem out in rural/suburban areas is you can't get a OC3 there. Not at anything like a reasonable cost, anyway.

So, yes, you might be able to put an antenna on the tallest object in the area, or get a permit to erect a tower for it, but the cost per Mbit will greatly exceed what anyone is willing to pay for it. Way down below there is some arguing about how a business like this could work - except they forgot the connection to the Internet price. About all you're going to get in some rural, mom-and-pop ISP type of place is a T1, and that would be a joke on something like this.

Why is this on the shelf? Because there isn't much of a need, and where there is need it doesn't work.

Wireless MAN (3.00 / 2) (#68)
by jsnow on Tue Dec 14, 2004 at 12:31:18 AM EST

(I didn't make this up, it's originally from here.)

Wireless Man, Wireless Man.

Doing the things that wireless can. What's he like? It's not important. Wireless Man. Is he a standard or is he a spec? When he's in the last mile does he connect? Or does the mile connect him instead? Nobody knows. Wireless Man.

Fiber man, fiber man. Fiber man hates wireless man. They have a fight, wireless wins. Fiber man.

DSL man, DSL man. Size of an ILEC cable plant. Unusually cruel to CLEC man. DSL man.

He's got reserves you can't withstand. Anticompetative with shonky plans. And when they meet, it's a no win land. DSL man.

Pick one (3.00 / 2) (#71)
by isdnip on Tue Dec 14, 2004 at 03:00:13 PM EST

It's important to note that the press -- and I think the topic story here has this problem too -- often misses the reality of WiMax. They pass along hype and then the user is disappointed when reality sets in. WiMax offers:

70 Mbps maximum speed

50 kilometer range

Unlicensed or licensed operation

But what they forget to tell you is: PICK ONE.

Range and speed are a trade-off. The receiver needs a certain amount of power from the transmitter to get a given speed (Shannon's Law). So if you want 70 Mbps, your range is reduced, for a given path and power, vs. say 5 Mbps.

And most WiMax is for licensed use. Yes, it can be used on unlicensed frequencies, but power limits are lower and the noise is sometimes worse. A lot of WiMax gear now is aimed at the 3.5 GHz licensed band, which doesn't exist in the US. Some is aimed at the 2.5 GHz band, which is licensed in the USA but usually, at this point, to Nextel or Sprint. (Also a lot of educational licensees, including churches, who can lease some of their bandwidth to commercial users.) Licensed gives you more power. Unlicensed WiMax suffers the same power limits as WiFi, though it's somewhat smarter technology.

So don't get all too excited.

802.16: Medium distance wireless networking that could change the world? | 74 comments (46 topical, 28 editorial, 0 hidden)
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