spectrumcrunch
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DARPA's next challenge could lead to AI-powered radios
So far, the solutions to wireless spectrum crunches have involved either offering relatively untapped airwaves or reusing frequencies that were previously assigned to something else. However, DARPA knows this can't go on forever -- and it's looking for help to devise a clever way around the problem. The military research agency has launched a new Grand Challenge that will have teams develop artificial intelligence-powered radios that cooperate with each other to avoid wireless congestion. Rather than force devices to use narrow frequency ranges regardless of how crowded they may be, DARPA would like to see those gadgets negotiate frequency sharing whenever they need it.
Mobile Miscellany: week of October 1st, 2012
If you didn't get enough in mobile news during the week, not to worry, because we've opened the firehose for the truly hardcore. This past week, FCC Chairman Genachowski weighed in on what must be done to keep the spectrum crunch from becoming a crisis, pricing leaked for the Motorola RAZR HD LTE at Rogers and Japan got a version of the Xperia V to call its own. These stories and more await after the break. So buy the ticket and take the ride as we explore the "best of the rest" for this week of October 1st, 2012.
OnLive CEO reveals 'entirely new approach' to wireless, credits Rearden for toppling Shannon's Law
"In advance, yes -- you're right, it's impossible. But nonetheless, we have ten radios all working at the same frequency, all at the Shannon limit... and there's no interference." You may not fully grok the significance of that statement, but anyone heavily involved in solving the wireless bandwidth crisis is probably dropjawed. For a little background, there's a perceived limit in wireless known as Shannon's Law, which largely explains why no one can watch a YouTube clip on their EVO at Michigan Stadium. For whatever reason, it's been assumed that this law was fundamentally unbreakable, but it looks as if an unlikely member of society may have just overrode expectations. OnLive's CEO Steve Perlman recently revealed a breakthrough from Rearden Companies -- in short, they've figured out a workaround, and in testing, it's doing things like "removing dead zones" altogether. His slide, shown during a presentation at Columbia, notes that the implications here are "profound," and we couldn't agree more. Do yourself a solid and hit play in the video below the break -- we've fast-forwarded to where this section begins.
