“In the early 1990’s, I was looking for ways to increase ‘sustain,’ the period of time during which the sound remains before it becomes inaudible, in my guitar. The available sustain effects caused uncontrolled feedback, and sometimes my guitar's pickups received radio stations. So, I made a cancellation circuit and an array of antennas to cancel the radio signals at baseband. That’s when I figured out that the same cancellation circuit could let antenna arrays communicate with each other using non-interfering subchannels in the same frequency band, which greatly increases spectrum efficiency.
I built the world's first radio MIMO system at the University of Colorado in 1992 and filed patents. Today, this technology is used in most wireless and cellular standards. Since then, I invented more technologies that are used in today’s standards, as well as many that are proposed for next-generation telecommunications. Although I no longer play my guitar in a band, I still enjoy performing. I’ve been recently training in aerial dance and hope to perform in Cirque du Soleil."