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WiMax Formed To Promote 802.16 Standard

The Original Yama writes "Intel, Nokia, Proxim, and a bunch of other companies have launched WiMax, a non-profit group founded to certify and promote the IEEE 802.16 wireless networking standard. What's interesting about this standard is that it allows "up to 31 miles of linear service area range and allows users connectivity without a direct line of sight to a base station," all at a shared speed of 70Mbps. This simultaneously blows away 3G mobile and 802.11 technologies."

10 of 125 comments (clear)

  1. Not a competitor to 802.11 or 3G by Wesley+Felter · · Score: 5, Informative

    This simultaneously blows away 3G mobile and 802.11 technologies.

    802.16 is designed for fixed outdoor operation and the antennas are much too big to fit in a PCMCIA card, so it won't replace 802.11.

    802.16 clients can't move around, so it can't replace 3G.

    1. Re:Not a competitor to 802.11 or 3G by BrookHarty · · Score: 2, Informative

      This simultaneously blows away 3G mobile and 802.11 technologies.


      Some things about 3G vs 802.xx
      1. Only 3G has roaming, you keep your same IP on telco roaming partners.
      2. Your IP can be routed back to your own network, so you can use Private IP space. (Think about this, 10 people with a 10.0.0.10 IPs on the same basesation, and they dont see each other. NO VPN needed.)
      3. 3G has unbroken native encryption. (Wouldnt matter to me, I wrap my traffic in ssh, but Police use 3G now.)

      One cool example.

      There are some people using a combo 802.xx/3G setup in fleet vehicals. While your truck is parked at the company lot, it downloads the daily data nice and fast. (or uploads at end of the work day)

      While the truck is making the rounds, it switches to 3G. Saves cost on 3G, with the large portion of data being transmitted locally via 802.xx.

    2. Re:Not a competitor to 802.11 or 3G by Cato · · Score: 2, Informative

      802.x can use Mobile IP to keep same IP address - admittedly there are problems when you roam fast enough, so 3G/2.5G are ahead here.

      3G, like GPRS, using a tunnelling protocol (GTP) to a wireless operator node called the GGSN. This sits within the operator's network not the corporate network, so there are companies (including mine) that provide MPLS VPN technologies to bridge that gap.

      3G has similar issues with encryption - there is encryption through radio access network, and probably across GTP, but not necessarily to your end system. Also, 'lawful interception' means that the authorities can get access to your data anyway, so there's still a need for end to end crypto.

      3G has generally better roaming (both technical and billing agreements) than WiFi, but that may change as cellular/mobile operators start to run WiFi hotspots (and in the future 802.16 perhaps) with GSM-style SIM cards (smartcards) for seamless roaming across 3G, GPRS, WiFi, 802.16, etc. As someone else said, 3G is good for mobility, and 802.16 isn't.

  2. This competes more with free space optics by bdhein · · Score: 5, Informative

    From the article, this technology is meant to link 802.11 hotspots, not as a replacement to 802.11.

    Free space optics is another interesting field that will give you upwards of 1Gb/s over 2km. More info on free space optics.

    All of these technologies are emerging to try to link the last mile to the high speed backbone as the cost of fiber is prohibitive (~$325/m) and the majority of the US doesn't live on top of a fiber backbone.

  3. More info on IEEE 802.16 wireless standard... by NOT-2-QUICK · · Score: 5, Informative

    For those whom are not aware of this technology, I gladly provide the following linkage:

    -- Article @ Network World Fusion

    -- Article @ Comms Design

    -- Published Standards & Drafts

    Enjoy! :-)

    --
    Beer is proof that God loves us and wants us to be happy. -- Benjamin Franklin
  4. A bit on this technology by stj · · Score: 5, Informative
    The technology itself is new and barely IEEE approved. In fact there are three versions of the standard to date (keywords made up):

    regular - for 10-55GHz frequencies and that one actually gives even up to 134Mbps. Now, because it uses range-dependent modulation techniques, you'll not have 70Mbps @ 30 miles. At 30 miles you might have about 20Mbps

    somewhat limited - for 2-11GHz which is unlikely to be implemented because it runs into almost all possible licensed frequency bands

    unlicensed - for 5 GHz unlicensed band - exactly the same as 802.11b
    Now, in any case, this is a fixed wireless network - that is stations are not mobile. So, it's NOT a competition for any mobile standards. All of that is very questionable at the moment because it will require quite a large licensed band and unlike UWB, it will transmit at measureable powers. I don't think Nokia would do anything to kill UMTS and 3G.
    There are some ISPs using it: installation cost in one I know is around $700 and monthly cost is $40 for wireless T1.

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    iThink iHate iMod
  5. Re:Forget 31 miles by CyberBill · · Score: 2, Informative

    Sounds great, but 31 miles? How about 50 feet though wood and concrete? Line of sight is nice, but for most interesting home networking, there's just no way.

    Its nice to people dont even read the whole HEADLINE, let alone the article before they start posting.

    "up to 31 miles of linear service area range and allows users connectivity without a direct line of sight to a base station,"

    -Bill

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    -Bill
  6. Re:Cellular by josecanuc · · Score: 2, Informative

    Note that Nokia is a very diverse company and they don't just do cell phones. Most of their other products (that don't involve cell phones) are found mostly in Europe and include two-way radios, "mesh" networking nodes (a la the now defunct AT&T Broadband).

    Check it out at http://www.nokia.com/networks/product_catalog

  7. Cantennas for everyone by Dag+Maggot · · Score: 2, Informative

    Who needs this? a $10 cantenna gets a 30 mile range, and now they even look nice on your desk

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  8. Re:Post. by etcshadow · · Score: 4, Informative

    What a shocking number of people seem to be missing is that these are for different purposes! It's like asking why the roads have both cars and trucks on them.

    The 802.11's are for wireless LAN. Local area net. They are a replacement for/supplement to ethernet. The various sub-standards do differ, that's true... but they are to serve different purposes (different levels of trade-off in price/range/throughput), and as far as interoprablity goes, that is supposed to be one of the purposes of 802.11g.

    802.16 is for wireless MAN. Metropolitan Area Network. That is actually somewhat of a new concept. It is something like a replacement for cable modem/DSL or for T1's, but it's not really the same as either. It is supposed to be a cheaper form of high throughput last-mile delivery.

    Despite many very cool attempts made over the past year or two, 802.11 is not particularly suited to delivering the last mile. It's fundamentally only good for a small number of computers over a short distance. That's a fact about the construction of the media access control layer and the radio spectrum. However, it does make for a much cheaper and easily configurable network. You wouldn't want to waste the money on more expensive radio equipment and spectrum in order to carry signals over a mere hundred feet to a handful of computers if you can do it cheaply and easily without.

    Anyway, I think that 802.16 is just tremendously cool. Cable modems are neat and all, but anything to increase the competition in the last-mile space is great. Another thing that I would really like to see come about is a grassroots mesh network of 802.11. Just simple folk who share their cable modems with one another. You can route to mine if I can route to yours. That sort of thing. Anyway... getting off topic.

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