DARPA’s Spectrum Collaboration Challenge is a competition to develop radios with advanced machine-learning capabilities that can collectively develop strategies that optimize use of the wireless spectrum in ways not possible with today’s intrinsically inefficient static allocation approaches.
To facilitate the research that will be required for the challenge, DARPA is building a gigantic wireless testbed, nicknamed the “Colosseum.” It will allow researchers to remotely conduct large-scale experiments with intelligent radio systems in a realistic RF-environment that simulates the real-world. “The current practice of assigning fixed frequencies for various uses irrespective of actual, moment-to-moment demand is simply too inefficient to keep up with actual demand and threatens to undermine wireless reliability,” said William Chappell, director of DARPA’s Microsystems Technology Office.