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  • oceanfront4me oceanfront4me Apr 3, 2010 11:39 PM Flag

    Wimax vs LTE-put Debate to REST already

    Tell it to Tarn. (LOL)


    http://www.thestreet.com/_yahoo/story/10716197/1/androids-advantage-for-now-wimax.html?cm_ven=YAHOO&cm_cat=FREE&cm_ite=NA


    Let's establish the WiMax advantage over the current 3G networks operated by all major carriers. Clearwire's WiMax network has at least four major advantages over HSPA (AT&T and T-Mobile) and EVDO (Verizon and Sprint):



    1. Speed. Upload and download speeds are higher. How much higher? Here is where it gets tricky. On paper, Clearwire is quoting numbers that are only approximately double that of the 3G networks. That's not the whole story, however. Which brings us to the next point.


    2. CAPACITY. The real speed experience is similar to that of a freeway. What matters is not how fast ONE car can go, but how fast ALL cars can go when the freeway is near capacity. In the case of Clearwire, it has a lot more spectrum at its disposal than its competitors. Clearwire has 120 MHz on average per market. Compare this to what most operators purchased near 700 MHz some 2-3 years ago: around 20 MHz, or 1/6th. This means a 6x wider freeway for Clearwire. So you can fit a lot more subscribers - or have the subscribers do more things simultaneously. This is the bandwidth tonnage that matters in a battle.


    3. TDD vs. FDD. Imagine if on a freeway you could dynamically, every fraction of a second, allocate the direction of any given lane. This would mean allocating the width of the freeway to the direction where there was more traffic. Effectively, this increases capacity materially. As a result, Clearwire's 6x advantage over the old networks may feel more like a 10x.


    4. Latency. Speed of uploads and downloads is important, but latency is often even more important. You don't want that initial two-second "wait" before things start happening, after you click or press. IN MY PERSONAL EXPERIENCE AS A CLEARWIRE CUSTOMER, I GET LATENCY AROUND 70MS, COMPARED TO 140MS-280MS WITH MY PREVIOUS EVDO AND HSPA CONNECTIONS. THAT'S A 2X-4X ADVANTAGE FOR WIMAX, and makes it "feel" like a cable modem as opposed to a second-class wireless citizen.

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    • By Jartrudel...



      Re: Sprint's CDMA & WiMax Dying Technologies

      3-Apr-10 04:21 pm

      Technically both LTE and WiMax are souped up 3G technology. 4G is a convenient label used to separate them. Neither one performs anywhere near lab standards when they're loaded down with subscribers. The defining parameter for 4G is supposed to be 100 mps minimum. LTE is even derived from the 3GPP, the 3g Partnership Project.

      WiMax 2 and LTE Advanced may be true 4G technologies but is it really important when current backhaul and IP can't come close to matching their delivery speeds? So many other things are far more important, like latency, shuttering, beam patterns, persistence, antenna separation, snr, and the frequencies they operate on.

      LTE started as a GSM switching tech originating with the telcos and moved to packet based, while WiMax started with broadband. They've both moved toward each other. Is LTE better? I believe it may be slightly better because it employs dual channels, and silver's a better conductor than copper but you won't find it being used much because the cost is just too prohibitive. LTE has a lot to prove while WiMax has been running successfully in the field for more than a year. They both have a lot to offer and it's likely some day both will be replaced by something better.


      Tell it to Tarn...:<)

      • 2 Replies to oceanfront4me
      • By Jartrudel...


        Re: Sprint long

        28 minutes ago


        That said, I love Sprint's position going into the biggest technological upheaval since the advent of the internet. Sprint holds around forty to fifty billion dollars of spectrum based on Verizon's recent 20 billion dollar purchase of a much lesser chunk; at least that's my understanding.

        Its wonderful to be an investor in Sprint right now. They have a cap of 11 billion, cash of 4 billion, and debt of 21 billion. As a major player in the industry, they're much healthier than AT&T or Vz when you consider their current position and real assets. They swapped/traded/gave up some spectrum with Clearwire in exchange for 51+ per cent of Clearwire stock so when you buy Sprint its a twofer deal. What the exact terms were I haven't researched yet. They could easily triple their subscriber base this year given their current multi-pronged strategy of wholesaling out through branded local networks, and that should change things in a hurry.

        Apparently AT&T is hurting for spectrum, and its a terrible position to be in going into the dat.com age. Data will be king and spectrum his queen. OTT Television is migrating to the mobile internet and will offer thousands of on-demand channels from all over the world HDMI'd to your high def 3D television set or streamed to your 3D smartphone. Video conferencing, m2m datastreaming, e-books, e-readers, e-newspapers, network controlled off-peak metering, virtual doctor house calls, property tracking, people tracking, computer in a car (did you see the video on CNET of the Intel guy driving around Baltimore while surfing the internet on his laptop?). Every 4 years we get a new favorite buzzword. The last four years it was "disingenuous." For the next four years the word you'll be hearing is "ubiquitous." Information overload? What a gross understatement.

        I also disagree that WiMax is a dying technology. It hasn't even seen the Spring yet; and I disagree with your dismissal of a buyout. With 90% of the stock held by hedge funds and institutions, their loyalties are non-existent, and a hostile takeover attempt using cash and stock by any one of dozens of companies is very likely in the near future.


        Tell it To Tarn...:<)

      • >>Tell it to Tarn...:<)


        Jatrudel's post was so without a clue I didn't even bother.


        >>Technically both LTE and WiMax are souped up 3G technology.


        WiMAX is not souped up 3G.

        WiMAX, IEEE 802.16, evolved from WiFi, IEEE 802.11.

        IEEE stands for Institute of Electrical and Electronics Engineers.

        WiMAX's goal was to provide last mile wireless broadband access as an alternative to cable and DSL.

        LTE, however, is a direct development of cellular telephony.

        The standard was set by the 3rd Generation Partnership Project, 3GPP, of which the European Telecommunications Standard Institute is a member and owns the trademarked name LTE.

        Cellco's the world over, and ALL the majors in the US except Sprint, are moving on to LTE as the common development standard.

        It is also endorsed by public safety agencies in the US as the preferred technology for the new 700 MHz public safety radio band (Wiki, npstc.org).

        Given the above, only members of the Sprint/WiMAX pumptards coalition still think that there will be a WiMAX 2 to compete with LTE Advanced in cellular telephony.

        The heading of this thread is correct.

        You can put the argument to rest.

        It's OVER for WiMAX.

        Sprint will need to wind down WiMAX when LTE comes on line.

        Don't know what the financial impact of that will be.

        But it will be MATERIAL.

        Get a clue!


        tarn

 
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