How AI is opening up spectrum space on crowded airwaves

Every time you make a phone call, stream a video, or connect to Wi-Fi, your device is sending and receiving invisible signals through the air. So are your baby monitor, garage door opener, your GPS, the weather-monitoring satellites, and the radars keeping planes safely apart. All of these rely on the same invisible resource: the radio spectrum. The demand for wireless data—driven by smartphones, video streaming, and billions of connected devices—keeps growing, making available spectrum scarce. But it doesn’t have to remain that way. As an electrical engineer who studies wireless communications, I’m part of a field of research working to address the radio spectrum supply crunch. The solution engineers and regulators have been developing is dynamic spectrum sharing. The core idea is straightforward: Instead of reserving a portion of spectrum exclusively for one user forever, allow multiple users to share the same frequencies—intelligently, and with clear rules to keep them from stepping on each other’s signals. Radio spectrum is at the low end of the electromagnetic spectrum, with frequencies below microwaves, light, and X-rays. You can think of it as a vast collection of invisible…