2025
conference-paper
OpenAlex
Aarushi Sarbhai, David E. Johnson, Kirk Webb, Leigh B. Stoller et autres
Radio Dynamic Zones (RDZs) enable diverse spectrum-sharing scenarios, including advancing coexistence between active and passive spectrum users. We consider RDZs where radio astronomy coexists with active transmitters and introduce the Adaptive Spectrum Tuning and Reactive Allocation (ASTRA) framework, used by a Zone …
us
(code pays fourni par la source)
2025
article
OpenAlex
David E. Johnson, Dustin Maas, Serhat Tadik, Alex Orange et autres
Radio Dynamic Zones (RDZs) are being explored by the research community as an approach to safely test and evaluate spectrum sharing mechanisms and technologies. There is general consensus in the research community regarding the conceptual architecture of an RDZ. In this paper, …
us
(code pays fourni par la source)
2024
conference-paper
OpenAlex
Jie Wang, Jonathan Gornet, Alex Orange, Leigh B. Stoller et autres
Software-defined radio (SDR) platforms, despite being an enabler of spectrum and infrastructure sharing, must ensure that their transmitted signals comply with spectrum rules. Violations may occur because of malware, misconfiguration, bugs in software, or RF frontend nonlinearities. We present FDMonitor, a full-duplex …
us
(code pays fourni par la source)
2024
conference-paper
OpenAlex
David E. Johnson, Dustin Maas, Serhat Tadik, Alex Orange et autres
Radio Dynamic Zones (RDZs) are being explored by the research community as an approach to safely test and evaluate spectrum sharing mechanisms and technologies. There is general consensus in the research community regarding the conceptual architecture of an RDZ. In this paper, …
us
(code pays fourni par la source)
2023
conference-paper
OpenAlex
Jacob Bills, Alex Orange, Jacobus Van der Merwe
Since their controversial decision to adjust the spectrum allocation for intelligent transportation systems in November 2020, the FCC has implemented a wide range of changes. These changes include the removal of 45 MHz from existing spectrum allocations and the transition from DSRC …
us
(code pays fourni par la source)
Accès ouvert
2022
preprint
OpenAlex
Jie Wang, Jonathan Gornet, Alex Orange, Leigh B. Stoller et autres
Future virtualized radio access network (vRAN) infrastructure providers (and today's experimental wireless testbed providers) may be simultaneously uncertain what signals are being transmitted by their base stations and legally responsible for their violations. These providers must monitor the spectrum of transmissions and …
Accès ouvert
2021
article
OpenAlex
Joe Breen, Andrew Buffmire, Jonathon Duerig, Kevin Dutt et autres
us
(code pays fourni par la source)
2021
conference-paper
OpenAlex
Joe Breen, Jonathon Duerig, Eric N. Eide, Mike Hibler et autres
POWDER is a highly flexible, deeply programmable, and city-scale scientific instrument that enables cutting-edge research in wireless technologies. Researchers interact with the POWDER platform via the Internet to conduct their experiments, with zero penalty for remote access. In this two-part demonstration, the …
us
(code pays fourni par la source)
2020
conference-paper
OpenAlex
Kevin Escobar, Daniel Parker, Jonathan P. Jacobs, Tara Spafford et autres
This paper demonstrates geolocation on the University of Utah's National Science Foundation Salt Lake 5G Platform for Open Wireless Data-driven Experimental Research testbed. A 5G Cloud Radio Access Network system based on Orthogonal Frequency-division Multiplexing modulation scheme was implemented to transmit data. …
us
(code pays fourni par la source)
2020
conference-paper
OpenAlex
Boston C. Terry, Alex Orange, Neal Patwari, Sneha Kumar Kasera et autres
Current software-defined radio systems enable transmission at nearly arbitrary frequencies, presenting the possibility of harmful interference to existing communication services when broadcasting over-the-air. The Platform for Open Wireless Data-driven Experimental Research (POWDER) provides software radios whose output can be amplified and transmitted …
us
(code pays fourni par la source)
2020
conference-paper
OpenAlex
Joe Breen, Andrew Buffmire, Jonathon Duerig, Kevin Dutt et autres
This paper provides an overview of the Platform for Open Wireless Data-driven Experimental Research (POWDER). POWDER is a city-scale, remotely accessible, end-to-end software defined platform to support mobile and wireless research. Compared to other mobile and wireless testbeds POWDER provides advances in …
us
(code pays fourni par la source)
Accès ouvert
2015
preprint
OpenAlex
David Schurig, Alex Orange
We examine an extraction model for metamaterials, not previously reported, that gives precise, quantitative and causal representation of S parameter data over a broad frequency range, up to frequencies where the free space wavelength is only a modest factor larger than the …