http://www.foxnews.com/tech/2016/04/01/darpa-wants-to-use-ai-to-squeeze-more-bandwidth-out-airwaves.html?intcmp=hphz01
DARPA wants to use AI to squeeze more bandwidth out of the airwaves
One interesting/terrifying aspect of today’s modern society is that we have
filled the airwaves with a multitude of radio signals. Ever since the
pioneering days of Marconi, Braun, and others we have been using more and more
of the electromagnetic spectrum to send audio, visual, and data signals.
Everything from FM radio to 4G LTE, from digital satellite TV to military
communication is all sent via one form of radio or another. The result is that
the radio spectrum is full, it is bursting at the seams.
In light of this, DARPA (the Defense Advanced Research Projects Agency) has
launched its latest Grand Challenge, this time to bring advanced
machine-learning capabilities to the way the radio frequencies are used. DARPA
has named the new competition the Spectrum Collaboration Challenge (SC2).
At the moment every type of radio has its own slot in the frequency spectrum.
FM Radio is from 88MHz to 108MHz, TV uses lots of different ranges as does 2G,
3G and 4G mobile. On top of that you have radio-location services, military
ranges, police bands, satellite transmissions and so on.
The problem is that assigning a fixed range of frequencies is wasteful. There
will inevitably be gaps. DARPA’s latest challenge is designed to ensure that we
get the best from the increasingly crowded electromagnetic spectrum. The idea
is to create smart systems that collaboratively, rather than competitively,
adapt in real time to the ever-changing and congested spectrum environment.
These “smart systems” will use advanced machine-learning capabilities and
artificial intelligence to optimize the use of the wireless spectrum. Unlike
other competitions the winner here won’t be the system which dominates the
other competitors, but the one that shares the most intelligently.
To test out the different systems DARPA will build one of the world’s
largest-of-its-kind wireless testbeds. It will allow the agency to evaluate the
different spectrum-sharing strategies, tactics, and algorithms. Dubbed the
“Colosseum,” after the ancient Roman amphitheater, it will allow researchers to
remotely conduct large-scale experiments with intelligent radio systems in
realistic, user-defined RF environments, including simulations of busy city
neighborhoods or even battlefields.
Clearly this is a complex problem and one that won’t be solved over night. That
is why SC2 will take place in three year-long phases beginning in 2017 and
finishing in early 2020. The prize for the most optimized radio spectrum is a
cool $2M! Interested? You can find out more here:
http://spectrumcollaborationchallenge.com.