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Steve Perlman Releases Whitepaper on Wireless DIDO Tech

By - Source: OnLive PR

OnLive founder and CEO Steve Perlman released a whitepaper on his Distributed-Input-Distributed-Output (DIDO) wireless technology.

OnLive's director of corporate communications Brian Jaquet informed us last night that OnLive CEO and founder Steve Perlman completed his whitepaper (PDF) in regards to the new DIDO wireless technology. He also gave a sneak peak of DIDO at the Columbia Magill lecture in early June which can be seen in the video below (starting at the 28th minute).

As we reported earlier this month, Perlman has seemingly broken Shannon's Law with his Distributed-Input-Distributed-Output (DIDO) wireless technology. Created at another of his startups at parent company Rearden Companies, it's an experimental wireless communications system that promises to pipe a full wireless stream from a nearby cell tower no matter its current load, whether its 100 simultaneous users or a 1000.

"Distributed-Input-Distributed-Output (DIDO) wireless technology is a breakthrough approach that allows each wireless user to use the full data rate of shared spectrum simultaneously with all other users, by eliminating interference between users sharing the same spectrum," reads his abstract. "With conventional wireless technologies the data rate available per user drops as more users share the same spectrum to avoid interference, but with DIDO, the data rate per user remains steady at the full data rate of the spectrum as more users are added."

"As a result, DIDO profoundly increases the data capacity of wireless spectrum, while increasing reliability and reducing the cost and complexity of wireless devices," he continues. "DIDO deployment is far less expensive than conventional commercial wireless deployment, despite having vastly higher capacity and performance, and is able to use consumer Internet infrastructure and indoor access points."

Ultimately the goal of using DIDO is to allow an unlimited number of simultaneous users, all streaming high-definition video, utilizing the same spectrum that a single user would use with conventional wireless technology. There will be no degradation in performance, no dead zones, no interference between users, and no reduction in data rate as more users are added. Sounds impossible.

"I know that sounds impossible," he said earlier this month, "but literally if you have a cell that has 100 megabits per second worth of bandwidth in it and you have 100 people, each person gets 100 megabits a second. It’s really pretty amazing; you don’t interfere with anybody else."

He added that DIDO works indoor/outdoor for urban/suburban applications at distances of several miles, and for rural applications, DIDO works at distances up to 250 miles. Urban/suburban latency is sub-millisecond.

Will DIDO wireless completely transform the world of communications as we know it? The proof is in the pudding as they say. But so far we're pretty dazzled by what he's accomplished with OnLive, allowing us to stream HD PC gaming on a low-end laptop and soon a tablet and smarphone.

For those interested in learning more, Perlman's paper describes how DIDO is dramatically different than conventional wireless technology, how DIDO works, what the team has running on DIDO so far, and the "mind-blowing" applications DIDO makes possible. Also check out his sneak peak, seen below.

Steve Perlman at Columbia Engineering School June 4, 2011

There are 13 Comments. B
Other Comments
  • 9 Ð
    wintermint , July 29, 2011 12:24 PM
    For some odd reason, I read that as Wireless DILDO tech lol..
  • 3 Ð
    sseyler , July 29, 2011 12:40 PM
    Why do these articles refuse to explain HOW DIDO works? Does it not?
  • 4 Ð
    raurelian , July 29, 2011 2:03 PM
    Quote:
    Also check out his sneak peak, seen below.


    1 hour 23 minutes is a "sneak peak"? :)  Hell, I wanna see the whole video! Not! :) 
  • 1 Ð
    tech lover , July 29, 2011 2:05 PM
    He used the wrong version of Shannon's law. Shannon's celebrated results are a lot more general than what he showed. He just used the wrong formula to predict the performance.
  • 2 Ð
    sunflier , July 29, 2011 7:23 PM
    wintermintFor some odd reason, I read that as Wireless DILDO tech lol..

    OMG! I LOL'd!!!
  • 1 Ð
    ojas , July 29, 2011 7:56 PM
    sseylerWhy do these articles refuse to explain HOW DIDO works? Does it not?


    probably because it's still in the "patent pending" stage lol :p 
  • 0 Ð
    rantoc , July 29, 2011 9:37 PM
    Hmm i think DILDO is more appropriate here - Distributed-Input-LAG-Distributed-Output
  • 0 Ð
    tburns1 , July 30, 2011 2:36 AM
    Watch wireless providers try to slam this shut. This might upset tiered bandwith internet plans. They'd have no justification to throttle a user's access if they didn't have to for infrastructure reasons. A level playing field is just not a republican ideal.
  • 0 Ð
    dalethepcman , July 30, 2011 3:05 AM
    Its pretty simple really. All he has done is modified BATMAN to work on the cellular networks.

  • 0 Ð
    dalethepcman , July 30, 2011 3:05 AM
    http://en.wikipedia.org/wiki/B.A.T.M.A.N.

    Toms ate my link
  • 2 Ð
    anonymous@guest , July 30, 2011 6:45 AM
    I read the PDF whitepaper; interesting concept but I remain unconvinced this will work (i.e. scale to real-world network environments). Essentially it's using the distributed network of APs to perform a kind of "beam-forming" rather than using a centralised phased-array antenna to achieve the same. I believe in practice that intractible issues of multipath and constantly time-varying channel parameters (due to passage of people, vehicles, multipath effects and the like) will result in a far less optimal outcome than conventional beam-forming where at least all signals originate from a single point and are subject to the same channel variance and multipath effects.

    I have also seen no evidence in the paper to support a claim that the DIDO signal encoding algorithm can scale to produce a simultaneously correct "superposed" signal at EVERY receiver station as the amount of information down the channel increases (i.e. multiple downloads) and the number of participant receivers becomes large. I have not performed analysis but I find this idea to be extremely counter-intuitive. There are no free lunches in wireless comms.

    I wish Perlman all the best and would love nothing more than to be proved wrong on each point above :) 
  • 0 Ð
    anonymous@guest , July 30, 2011 6:11 PM
    Don't believe it
  • 0 Ð
    anonymous@guest , August 1, 2011 9:33 PM
    I read the paper. It doesn't require an electrical engineering degree to understand (just common sense and a basic tech level). Basically, from my understanding, DIDO works differently than wireless. Wi-fi send a wave form to your device and as such many wi-fi access point that are close sending wave form in the same frequency will create interference and reduce your bandwidth (speed?).

    DIDO works by offloading the wave form creation to a server. Basically the server calculates the precise waveform needed so that if you have 5 access point broadcasting, when all those 5 wave form hit your device the overlap will create a perfect waveform for you (and the same happens with other devices).

    It is very interesting and I think it will work... This is just mind-boggling!!!
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