Florian Kaltenberger

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About

Florian Kaltenberger is a leading researcher in wireless communications, with key contributions to 5G and beyond, open-source radio platforms, and unmanned aerial vehicle (UAV) integration into cellular networks. His work bridges theory and practice, most notably through the development of the “Rebot” (Relaying Robot) concept—the first autonomous UAV-based LTE relay system. Demonstrated in his highly cited 2018 paper (36 citations), this innovation uses OpenAirinterface to provide enhanced end-to-end connectivity to ground users from a fixed base station via a flying relay with autonomous placement algorithms. Kaltenberger has also advanced positioning in 5G NR, proposing novel round-trip time estimation methods critical for industrial use cases like autonomous robots and connected vehicles, as outlined in his 2024 work (6 citations). His research directly supports 3GPP standards from Release-16 onward. As a core contributor to OpenAirinterface, an open-source software-defined radio platform, he has empowered global experimentation in 4G/5G systems. With a strong publication record and practical impact on future wireless networks, Kaltenberger’s work continues to shape the evolution of reliable, high-performance connectivity for emerging technologies.