Digital Spectrum Twinning and the Role of RFID and Backscatter Communications in Spectral Sensing

In this work, we formalize a long-felt need in the spectrum sharing community using the concept of a digital spectrum twin, which is the maintenance of a virtual representation of spectrum properties with near- or quasi-real time updates using selected spectrum sensing. An immediate consequence of this formulation is the need for low-cost, widespread spectrum sensing technology. We illustrate how emerging technologies in RFID and backscatter communications can fill this void and allow next-generation spectrum management technology to flourish.