Abstract

With the proliferation of terrestrial and space-based wireless radio frequency transmitters and receivers in recent years, there is a greater need for spectrum cooperation and transparency. Spectrum is a limited resource that is shared between all wireless devices, both active and passive. The spectrum needs of today and tomorrow demand new techniques to enable cooperation and device transparency. This dissertation explores an innovative field, wireless sub-protocols, that provides novel software solutions for spectrum cooperation and transparency. The first application is radio astronomy. Radio astronomy deploys highly sensitive, passive RF receivers to capture faint signals from distant celestial bodies. Because passive receivers are highly sensitive, they are highly susceptible to interference. We develop two sub-protocols to address this problem. The first is a beacon the radio astronomy equipment can broadcast to nearby transmitters to inform the nearby transmitters of the radio astronomy operation plans. The second sub-protocol enables the active transmitters that are interfering with the radio astronomy equipment to watermark their transmission with identifying information that the radio astronomy equipment can use to enhance their radio frequency interference mitigation techniques that are already in place. The second application this dissertation focuses on is Remote ID compliance for commercial and hobbyist drones. This sub-protocol embeds the Remote ID message within the preamble of a transmitted WiFi packet. This sub-protocol enables transparency both in airspace and spectrum transparency, which Remote ID aims to accomplish. The sub-protocols discussed in this dissertation are implemented on software-defined radio and commodity-off-the-shelf technologies to demonstrate their feasible to enable spectrum cooperation and transparency for their respective applications.

Degree

PhD

College and Department

Ira A. Fulton College of Engineering; Electrical and Computer Engineering

Rights

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