Nov. 16 - 17, 2021 -- NRDZ Partnership Workshop #2
Shattering siloed spectrum sharing mechanisms for future NRDZs
Meeting Outcomes:
General Information:
Nov. 16 - 17, 2021
Virtually via Zoom (Zoom access information will be provided to registered attendees).
Scope and Goal:
National Radio Dynamic Zones (NRDZ) are being advocated for as a means to advance the state of wireless communications, to support the design of next generation wireless networks with practical, real-world, regional test sites, and to ensure the continued successful operation of passive services in an increasingly crowded spectrum. The utility of the radio spectrum depends on the harmonious coexistence of active communications systems, passive scientific systems, and orbital remote sensing systems. The state in spectrum coexistence mechanisms across these technologies is vastly different: from automated and measurement-driven spectrum allocation for commercial broadband to manual leases across scientific users, and disparate users are generally not aware of each other's capabilities.
The goal of this workshop is to familiarize the broader community of active, scientific and remote sensing users with the state-of-the-art in their respective spectrum management and allocation mechanisms. A hackathon 'sprint' will challenge participants to develop and propose solutions to grand challenges faced by spectrum sharing inside NRDZs.
Workshop Organizers:
- Christopher R. Anderson, Electrical and Computer Engineering, United States Naval Academy.
- Mariya Zheleva, Computer Science, University at Albany, SUNY.
- Chris De Pree, National Radio Astronomy Observatory.
- Joel Johnson, Electrical and Computer Engineering, The Ohio State University.
- Mustafa Aksoy, Electrical and Computer Engineering, University at Albany, SUNY.
Agenda
Before The Workshop
View the Workshop 2 read-ahead material. Please review this material before the workshop to understand key NRDZ issues and topics, which have also informed the agenda for this workshop.
DAY 1: Spectrum coexistence tutorials. Nov. 16, 2021. 12:55 - 4 p.m. EDT
Day 1 will feature several tutorials on the state-of-the-art in spectrum sharing from experts in the passive and active communities.
12:55 - 1 p.m. Welcome and overview from the organizers.
- Mariya Zheleva, Chris Anderson, Chris DePree, Joel Johnson and Mustafa Aksoy
1 - 2:20 p.m. Tutorial 1: Examples of Methods Used to Protect Incumbents in 3.5 GHz CBRS and 6 GHz AFC with Relevance to Passive/Active Spectrum Sharing
Materials:
2:20 - 2:30 p.m. Break
2:30 - 4 p.m. Tutorial 2: Spectrum management for radio astronomy -- VLA telescope scheduling
Materials
DAY 2: Main workshop day. Nov. 17, 2021. 12:30 - 5:20 p.m. EDT
12:30 - 12:40 p.m. - Welcome and overview from the organizers.
- Mariya Zheleva, Chris Anderson, Chris De Pree, Joel Johnson and Mustafa Aksoy
12:40 - 1 p.m. - Thoughts from NSF
Materials
1 - 2 p.m. - Fireside chat and QnA: Now that there is pie on the table, how do we divide it?
Fireside chat and QnA: Now that there is pie on the table, how do we divide it? Video
2 - 3:10 p.m. - Panel: Building the coffee shop in the library.
This panel will bring together experts across spectrum sharing technologies and application domains. The panel will present several grand challenges to NRDZ spectrum sharing that emerged from our community efforts over the past year. Panelists will offer their expert opinion on approaches to tackle these challenges and open problems that will require a collaborative approach.
- Moderated by Liese van Zee, Department of Astronomy, Indiana University – Bloomington.
Panel: Building the coffee shop in the library Video
- James Neel, Senior Technologist, Federated Wireless
Centralized SAS-based spectrum management - Danijela Cabric, Professor, Electrical and Computer Engineering, UCLA
Distributed algorithms for resource allocation in coexisting networks - Greg Taylor, Professor, Department of Physics and Astronomy, UNM
Low frequency radio astronomy - Jeff Piepmeier, Chief Passive Microwave Instrument Engineer, NASA
Remote sensing; spectrum management for Earth Science Technologies - Kimberly Baum, Vice President Spectrum Engineering and Strategy, OneWeb
Satellite megaconstellations - Kobus Van der Merwe, Professor, School of Computing, University of Utah
POWDER-RENEW testbed. NRDZs in existing testbeds.
3:10 - 3:20 p.m. - Break
3:20 - 3:50 p.m. - QnA with panelists
3:50 - 4:50 p.m. - Grand challenges sprints
The sprints will be facilitated by pairs of panelists. Participants will work collaboratively to leverage their knowledge in existing spectrum sharing towards solving grand challenges in shared spectrum access for NRDZs.
- Policy sprint -- build a policy framework for NRDZ. There are two extremes for a potential policy framework including (i) no licensing procedures; all unlicensed, show up, plug into the system and do whatever experiments you need in the zone; and (ii) fully-fleshed FCC+NTIA licensing. Where does an NRDZ need to be on this spectrum to allow quick experimentation with stakeholder protections? How do we realize this?
- Monitoring sprint -- conceptualize a spectrum monitoring system for NRDZ that can support (i) the wide range of target frequencies (30MHz - 200GHz and potentially into THz); (ii) the vastly different sensitivity levels required by participating technologies (i.e. 120dB difference between radio astronomy and active communications); and (iii) the differences in the geographical footprint of NRDZ technologies?
- Experiment management sprint -- conceptualize an experiment management system to allocate NRDZ resources to experiments considering all stakeholders needs. Develop a schema for information exchange across disparate stakeholders in support of NRDZ resource allocation.
4:50 - 5:15 p.m. - Sprints review and retrospective
Each sprint team will be asked to provide a brief update on the outcomes of their discussion.
5:15 - 5:20 p.m. - Closing remarks
Documents
Current Findings from the NRDZ Initiative. These findings are based on meetings with stakeholders in the period April 2021 - October 2021. Please, read these ahead of the workshop to understand key issues and topics in the context of NRDZ, which have also informed the agenda for this workshop.
National Radio Quiet and Dynamic Zones, Thomas Kidd, CHIPS: The Department of the Navy's Information Technology Magazine
