Martin Weiss University of Pittsburgh Pittsburgh PA USA mbwpittedu Overview Current actions in the US Underlying factors Conclusions amp research frontier 2 Overview Recent developments in spectrum bands covered in more detail by Doug Sicker ID: 560863
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Slide1
Current and Future Directions in Spectrum Sharing
Martin Weiss
University of Pittsburgh
Pittsburgh PA USA
mbw@pitt.eduSlide2
Overview
Current actions in the US
Underlying factors
Conclusions & research frontier
2Slide3
Overview
Recent developments in spectrum bands (covered in more detail by Doug Sicker)
TV White Spaces
CBRS in the 3.5 GHz band
5.8 GHz
Satellite C-Band downlinks
Other sharingModel city (from PCAST)Philadelphia spatial measurement projectMore generallyCSMAC process“Bi-directional” sharing
3Slide4
Underlying questions
How do we build “social capital” in the spectrum sharing ecosystem?
What is the “low hanging fruit” of the spectrum sharing ecosystem that we can focus on?
What are we building the ecosystem for?
4Slide5
What do we mean by the “spectrum sharing ecosystem”?
Constituents
Regulators
Incumbents
Entrants
Spectrum Managers/Database operators
NGOsGovernmentsMilitaryBroadcastersInstitutions
Resource definition
Resource governance
Enforcement
Technologies
Software/Cognitive radios
Spectrum Access Systems
Environmental SensingEnforcement
5Slide6
Institutions
Resource
definition
Spectrum allocation and assignment methodsFramework for negotiating the terms of sharing
Resource governance
Nested hierarchy?
Collective action rightsEnforcement6Slide7
What is “social capital” and how do we build it?
Social capital
The foundation on which we interact with each other
Reduces “transaction costs”
Building social capital
Experience and history
Clear rights and rulesPredictable outcomes from dispute adjudicationA note on rights enforcementInvolves potentially all stakeholders
Goes beyond
usage rights
(i.e., interference) and includes
collective action rights
7Slide8
Enforcing collective action rights
Including governance mechanisms enables CPR governance
Accountability
Locally devised rules
Nested governance
Enforcement
8Slide9
What is the “Low Hanging” fruit?
What I learned from 15 years of DSA research
We (the community) were seduced by the challenging technical problem of distributed “non-cooperative” cognitive radio systems
Bypassed the “cooperative” approaches – until TV White Spaces
How does this apply?
Address the “easy” problems first
Address the “most likely to occur” problems firstAddress problems that have a greater impact on building social capital first
9Slide10
“Low hanging fruit” examples
E
nforcement infrastructure for “routine” events
Fixed sensor network (sensing as a service) for environmental sensing
Use “citizen science” framework to build data about spectrum environment
10Slide11
Purpose of the sharing infrastructure
Lessons from unlicensed services
Platform for innovative new service
11Slide12
Toward a research agenda
Numerous meetings have taken place
Research future meeting at DySPAN 2015
US National Science Foundation (NSF)
Enhance Access to Radio Spectrum (EARS) Report
(
http://www.nsf.gov/mps/ast/2015_ears_workshop_final_report.pdf) Spectrum Measurement workshop (http://www.cs.albany.edu/~mariya/nsf_smsmw/)
Wireless System Research and Development (WSRD
) workshops (
https://
www.nitrd.gov/nitrdgroups/index.php?title=Wireless_Spectrum_Research_and_Development
)
Perhaps others elsewhere in the world
What are the “tall poles in the tent”?
12Slide13
Example: Grand Challenges from the NSF EARS workshop
Achieving
h
armonious c
oexistence
in
heterogeneous wireless networks and systems Development of automated enforcement m
echanisms
and
compliance
c
ertification
m
ethods Evolving spectrum sharing
a
rchitectures
for
future
w
ireless
a
pplications
and
usage
s
cenarios
Exploration
of
emerging
t
echnologies
as a
vehicle
for
bold
n
ew
a
pproaches, including academic-industrial-regulatory interaction
13Slide14
Discussion?
14