WiMax Landscape Taking Shape 108
geekee writes "A front page article in EETimes describes some of the goals, as well as some of the issues, involved in WiMax (802.16a) development. The main goal is to deliver 74Mb/s up to 50 km. One big issue is the tighter specs required when compared with WiFi. "It's a big train wreck, and much more complicated than 802.11a design, especially in terms of dynamic range, spectral range and phase noise in RF," said Colin Howlett, a senior RF engineer at VCom Inc. There are at least 4 known companies working on the RF portion and 4 known companies working on the baseband processing. These companies include Intel, Fujitsu, and Maxim. Another issue is in getting governments to agree on regulation standards for the systems, particularly in the 2.5, 3.5, and 5.8 GHz bands, Inconsistancies exist in the requirements for dynamic frequency selection and transmit power control, as well as spectrum allocation. Cost is also an important factor, since WiMax is positioning itself as an alternative to DSL and Cable, and therefore, companies must be able to offer competitve prices to gain market share."
faster faster faster (Score:2)
Re:faster faster faster (Score:5, Interesting)
create a wireless power [bbc.co.uk] standard, and I finally throw away all external cables!
Re:faster faster faster (Score:1)
Re:faster faster faster (Score:2)
Yeah, current wireless power sucks in that we can mostly on conceive of it being transmitted via magnet or microwave, both having big detractions (eg. vs hard drives, or human skin). If they could figure out how to cheaply/precisely/safely aim laser beams at a window on each device, that would be better, but that sounds far fetched a
Microwave Power, not Induction (Score:1)
There was a story here a little while back about true wireless power, using a highly focused microwave beam. Find it here [slashdot.org]
Re:faster faster faster (Score:2)
But I'd love to ditch my cell provider and go with a VoIP solution via WiMax. Of course, coverage would be an issue for a long time to come, but at least I wouldn't have to worry about minutes.
Re:faster faster faster (Score:2, Insightful)
How do you know they wont charge per minute or per kilobyte?
Cells will get cheaper, and more unlimited plans will show up, because the infrastructure is there and practically paid for, they need only make up maintanaince costs..
Think how much it cost to use a cell phone in the 80s for a guesstimate at your WiMax service bill.
Re:faster faster faster (Score:2, Insightful)
Network cables offer some sense of security, you cant look at the data on a network cable without physically hooking up to the cable. If you secure your cable, you secure your communication.
For wireless, you cant very well secure the sky, so it is a lot less secure.
Obviously there is encryption, but moving from wired to wireless gives the spy just one less thing to worry about.
It really doesn't matter to much in a home network, I suppose, but
Another article (Score:5, Informative)
Ars Technica (Score:1, Interesting)
Thank goodness. (Score:1)
There are so many problems with that. (Score:4, Informative)
Second of all, I don't think this will necessarily have a lower cost than existing connections. Cable and telephone infrastructure already exists necessarily because of other technologies; that means that cable and dsl providers really don't have much overhead on those technologies (beyond the bandwidth and the routers, which they would need anyway).
Finally, I don't think we have to "hope" that Intel gets sufficient funding; I mean, feel free to donate, but they have enough funding to develop wimax or any other technology for the next millenium.
Beyond all that, this could be a very nice innovation for one reason; Convenience.
Re:There are so many problems with that. (Score:2)
Second of all, I don't think this will necessarily have a lower cost than existing connections. Cable and telephone infrastructure already exists
This is true. If you ignore the fact that competition hasn't had an opportunity to drive prices down yet, wi-max equipment is still incredibly expensive. The infrastructure is vapor, and will be until the market sees more than a handful of vendors pushing gear that implements the new standard.
Re: (Score:2)
Re:There are so many problems with that. (Score:2)
$30/mb (capped) on 100M commits
This means a cheap ISP could set up two/three of these (to cover a certain area) and still be well within the currently accepted overselling standards for end user internet connections (lets be honest , how often would you burst 10MBs if you had data transfer billed per $1/GB month?)
Then when the ISP needs to add more capcity (say everyone goes full out) they can add public peering relatively cheaply
Profit , without the ????
Re:Thank goodness. (Score:1)
Re:Thank goodness. (Score:1)
Regards,
Steve
Backbone, maybe. Consumers? I don't think so. (Score:3, Insightful)
Re:Backbone, maybe. Consumers? I don't think so. (Score:1)
Re:Backbone, maybe. Consumers? I don't think so. (Score:3, Interesting)
You're not thinking big enough. I think the key word here is convergence. At really high speeds, 50 mbps for example, everything comes through the internet. Voice over ip is the first example as it requires relatively little bandwidth. Television and on demand movies are real bandwidth hogs, and will not be delivered over the internet
Re:Backbone, maybe. Consumers? I don't think so. (Score:2)
70mb with 20:1 oversubscription will be good for about 500 customers in about 5 years in the US or other well connected areas.
Re:Backbone, maybe. Consumers? I don't think so. (Score:5, Insightful)
Re:Backbone, maybe. Consumers? I don't think so. (Score:3, Informative)
My personal experience differs from your statement.
Unless using specialized antennas at both ends, 802.11 would not even be adequate from the utility pole to the house in many circumstances.
The "specialized antennas" are 50 or 60 bucks each, readily available online from many sources. I've been using standard, off-the-shelf Linksys WAP11's and a couple of 24dBi directional antennas, on an 802.11b link, for the last year. I'm 1.1 miles from my source, and have fu
Re:Backbone, maybe. Consumers? I don't think so. (Score:1)
Re:Backbone, maybe. Consumers? I don't think so. (Score:2)
What part of "last-mile solution" wasn't clear about my response? Backbones get you to the area you want to distribute the signal from, distribution gets you out from there. It's two different sets
Re:Backbone, maybe. Consumers? I don't think so. (Score:1)
Re:Backbone, maybe. Consumers? I don't think so. (Score:2)
Re:Backbone, maybe. Consumers? I don't think so. (Score:1)
Re:Backbone, maybe. Consumers? I don't think so. (Score:1)
Re:Backbone, maybe. Consumers? I don't think so. (Score:2, Insightful)
Going up to 30 miles with up to 74Mb/s is not exactly the same this as going 30 miles at 74Mb/s. Even if it achieves this goal (doubtful in my book without a massive power increase), it is almost irrelevant to any purposeful application. Think about it: 8VSB, used to broadcast digital televisi
Re:Backbone, maybe. Consumers? I don't think so. (Score:1)
Re:Backbone, maybe. Consumers? I don't think so. (Score:1)
Re:Backbone, maybe. Consumers? I don't think so. (Score:1)
Re:Backbone, maybe. Consumers? I don't think so. (Score:5, Insightful)
Re:Backbone, maybe. Consumers? I don't think so. (Score:1)
Re:Backbone, maybe. Consumers? I don't think so. (Score:1)
good Idea I just patented that name and trademarked it, so i can get rich with out working.
Re:Backbone, maybe. Consumers? I don't think so. (Score:2)
This is wireless though, so all users within a particular tranceivers coverage area would share that bandwidth. 802.11g gets close, but to ge the kind of range 802.16 is supposed to provide you have to hack together directional antennas, and there is no standard for that.
Re:Backbone, maybe. Consumers? I don't think so. (Score:5, Interesting)
802.11b is not a viable access solution
802.11b does not have enough reach or capacity to service a city. Limited bandwitdh, 11 MB/sec makes deployment in highly populated areas an un-reality. Each node can realisticly support 10 or 11 households. To support densly populated areas, hundreds of nodes would be required. In addition there is no real "roaming" available with 802.11b. The G simply ups your limited bandwidth to something higher, at the cost of range. That's not really a viable solution. Finally the limited range makes deployment in rural and suburban areas an impossibility.
The way of the future
A *SINGLE* 802.16 node would be capable of hosting about 1100 64K voice over IP channels. The same bandwitdh could be used to provide appx. 140 "broadband wireless" subscribers with 512K channels. That's pretty impressive. Stack 10 Nodes and you have 1440 broadband subscribers. Not only that, 802.16 was designed as a solution for Metropolitan Area Networks. 802.16 is simply an evolution of the 802.11 technology, scaled for carrier grade deployment, and the servicing of a large number of end users.
The real last mile solution
In rural areas, and even some city suburbs the reality of "broadband" isn't coming to fruition. The primary reason is cost. It costs too much to deploy cable systems and becuause of the distance from a central office, DSL is not feasible. Satellite isn't really all that great as on of it's "Features" is the very high latency.
A new age
802.16 will begin a new wireless age. In the coming years we will find that there is no Data and Voice usage with our cellphones, as the notion of a "Data Channel" and "Voice Channel" will go away, all calls will be just data. Instead of an 802.11b card, you will have an 802.x chip built into your laptop or handheld device, you will gain access to the same network that your phone uses and the protocol to do so will be the same. We will all have access, uniquitous access to data from any place that currently has cellphone coverage. 802.16, and it's future generations will be "The way" that data networks are accessed wirelessly.
How does 802.16 actually *WORK*? (Score:1)
Does it require special antennas and bulkier equipment? I imagine the power of the signal must be vastly greater... My 802.11b wireless card transmits at about 30 mW and with a very rudimentary antenna.
So what's different in 802.16?
Re:How does 802.16 actually *WORK*? (Score:2)
802.16 equipment uses larger antennas (and probably more power) than 802.11 PCMCIA cards.
802.16 uses a much more efficient MAC protocol than 802.11.
Re:How does 802.16 actually *WORK*? (Score:2)
I imagine the antennas will be much the same as they are now, as for bulk equipment -
Re:How does 802.16 actually *WORK*? (Score:2)
doubtful, reqs even more cells then cellular (Score:2)
802.16 is simply an evolution of the 802.11 technology, scaled for carrier grade deployment, and the servicing of a large number of end users.
Even scaled at the numbers you say, this seems like it would require a heck of a lot of cells to service a large population. In a city of a million people your talking on the order of 1000 cells (each with 10 "nodes" as you say, in them). Each of the cells being strategically placed and configured so as to not kill its neighbors.
This all sounds highly improbable
Re:Backbone, maybe. Consumers? I don't think so. (Score:3, Insightful)
Bigger, faster, better is done in the name of progress. No one says you can't take a break from fast-paced technology by going for a hike in the woods. Hell, you can give it up entirely and live there for all I care.
Re:Backbone, maybe. Consumers? I don't think so. (Score:2)
Do the math. What's your bitrate from a DVD? IP may not be the appropriate solution for, er, _broadcast_. We've got these things called "satellite TV" and "cable TV" which fill that need just fine _at this time_.
Just don't go around asserting that things are fine the way they are and nothing should change, it only makes you look ignorant.
And likewise, don't go around asserting that people have made a sta
real bandwidth? (Score:3, Insightful)
Re:real bandwidth? (Score:2, Insightful)
Re:real bandwidth? (Score:1)
Re:real bandwidth? (Score:1)
2) Make sure both ends are set to use 54Mb/s. Maybe one is set to 10Mb/s somewhere.
3) Make sure you don't have a 10Mb/s wireless connection also talking. It will degrade all your wireless connections to 10Mb/s.
4) Make sure there's no other 2.4GHz interference around (phones, baby monitors, X10 cameras, right next to a CRT, etc.). Might be a problem if you're in an apartment.
If you're sure none of th
Re:real bandwidth? (Score:1)
*NOT* a consumer technology.. (Score:5, Informative)
Re:*NOT* a consumer technology.. (Score:1)
Sounds like a consumer tech to me.
Re:*NOT* a consumer technology.. (Score:5, Insightful)
Backers hope WiMAX could be used as a replacement for T1 lines for business, become a backhaul for 802.11 hotspots, provide Internet access for consumers and get integrated along with
Well, your theory makes a lot more sense, but it looks like it disagrees with the article; I'm just curious, where did you get your information?
Re:*NOT* a consumer technology.. (Score:1, Informative)
WiMax AP's will by design be very expensive just like DSLAM's are, whilst the recievers should be cheap just like DSL modems are.
Remote sensing (Score:3, Interesting)
If the RSPB are trying to make sure no-one nicks the eggs, they just get a Tini or similar linked up to a webcam and one of these networks, and you have yourself a remote monitoring station for those rare eggs without some poor sod having to sit there for 10 weeks...
Not to mention the more normal uses, of course
Simon
Re:Remote sensing (Score:2)
You mean downloading pr0n, right?
so close yet so far (Score:1)
FCC (Score:5, Interesting)
Re:FCC (Score:2)
Re:FCC (Score:3, Insightful)
Almost any consumer device you can think of exists at 900MHz, 2.4gHz, or 5.8gHz, and I don't see any stuck on the drawing board devices waiting for more bandwidth to be available. The rest of the frequencies are of course going to be devided up by the highest bidders, there's a finite quanity that has to be split up otherwise a tragedy of the commons would occur.
RF users need to spend their time looking for better ways to use the bandwidth they already h
Tell me why (Score:2, Interesting)
Sounds like a pretty crappy, easily oversold service, with crappy ping times. We already have that and it's called satellite.
Wires are the future. Wireless is for sock thumpers.
Re:Tell me why (Score:2)
Re:Tell me why (Score:2)
Isn't 802.16a point to multipoint? Or is that b,c,d,e,f or g?
Re:Tell me why (Score:3, Informative)
And I thought it was a magazine (Score:4, Funny)
And here I thought it was just a Playboy wanna-be with out the wit or boobs...
Why are they waiting until .16e ... (Score:4, Insightful)
Re:What about my cordless phone? (Score:2)
74Mb/s? (Score:1)
Re:74Mb/s? (Score:2)
Coming soon to Houston County, Georgia (Score:3, Informative)
Official Home Page [wirelessho...county.org] (only looks right in IE)
Stories [tallahassee.com] from the local paper
Breaking News - Wire Technology (Score:2, Interesting)
NEW YORK - Over the past century, the health of humans has been
increasingly endagered by the radiation in the evironment. Ever since
we have had networks, we have had radiation, and in ever
increasing amounts.
Since the high amount of radiation in our environment has been
identified as the primary cause of death in modern society (radiation
is the cause of all cancers and mutations which are responsible for
41% of all deaths today), more and more voices are taking up
bpspp (Score:2)
Re:bpspp (Score:2)
Re:bpspp (Score:2)
At least the last mile isn't gravel... (Score:1)
My only non-satellite alternative turned out to be a wireless broadband service. Their techs mounted a square antenna
As a WISP owner... (Score:2)
What remains to be seen is if 802.16 will tackle the pitfalls of 802.11. I suspect it won't, and if it doesn't then we're only marginally better off. Frankly, you can get close to 50km links on 802.11 equipment under ideal conditions, so that's not a big bene
Re:As a WISP owner... (Score:2)
Just wait... (Score:1)
802.11 + 802.16 + 802.20 = Pervasive net (last word can be substituted by nightmare)
802.11b mesh/repeater/ap/longrange LOCUSTWORLD (Score:1)
measures agaisnt connection sharing? (Score:1)
Does anyone here know... (Score:2)
I would be interested in it myself, but I have a friend who is looking for the same, and she is planning on moving to near BFE (somewhere on the Apache Junction/Mesa border) - are there such options for her?
Also, is there a website or something listing the major metropolitan wireless freenets? Seattle Wireless shows some, but not all. Is there any such activity going on in P
Why-Fi - Wi-Fi - WhyFi - WiFi (Score:1)
Why-Fi.net: Everything WhyFi, Wi-Fi, and WiFi [why-fi.net]
I'm not wearing socks... (Score:1)
...you insensitive clod!
And yes, I've just fed the troll. Ah well, I wasn't accumulating karma anyway...