Project Grant 2229428

This three-year, $119,418 Project Grant from the National Science Foundation's Mathematical and Physical Sciences Directorate will fund research at the California Institute of Technology to develop new spectrum sharing protocols and technologies. The project aims to enable more efficient sharing of spectrum between terrestrial commercial wireless systems and passive scientific receivers, while empowering passive systems to require interfering transmitters to change bands. Researchers will create open source software and work with international standards bodies to incorporate results into future spectrum policy. They will also implement and test protocols on open testbeds and conduct experiments, including at the Owens Valley Radio Observatory, to validate technical contributions and quantify performance under attacks. If successful, the work could allow more reliable operation of radio astronomy receivers and adapt spectrum decision-making on user equipment to new sharing policies.