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Toward adaptive
spectrum sharing
systems
Martin Weiss
School of Info. Sciences
University of Pittsburgh
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Evolution of spectrum
sharing
Concept
Research
Trials
Rollouts
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What have we learned?
 Technology is only an enabler of spectrum sharing
 Need business and policy context
 Need to understand motivations and risks
 Every spectrum sharing situation is unique in some way
 Geography
 Policy
 Frequency band
 We can’t predict how, why, where sharing will be used
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Some lessons from the
broader literature
 A sharing regime presupposes a redistribution of rights
 Sharing inevitably results in interference
 A rights regime need not be permanent
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Implications
 Need to seriously
examine the role of
governance in spectrum
sharing
 Rights redistribution
 Resource management
 Rights enforcement
 Interference
management
 Need to build spectrum
sharing systems that can
be adaptive to future
circumstances
 Need to explicitly
incorporate ideas from
the social sciences
 Social capital
 SAS as a socio-technical
infrastructure
 Need to construct
systems to support
enforcement of rights
 Detection
 Forensics
 Adjudication
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Implications