nato ist-140 rtg-065 cognitive radio networks - efficient...
TRANSCRIPT
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NATO IST-140 RTG-065Cognitive Radio Networks - Efficient Solutions for Routing,
Topology Control, Data Transport, and Network Management
© I.F. Akyildiz et al., A Survey on Spectrum Management in Cognitive Radio Networks, IEEE Communications Magazine, April 2008
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Motivation• Individual Cognitive Radio Network aspects have been
studied A holistic picture is still missing Global networking goals should be achieved
• Cognitive Radio Network will now optimize end-to-end connectivity
• WE GO BEYOND COGNITIVE RADIO
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Overview• What is IST-140?• Our expectations• What are Cognitive Radio Networks?• Objectives• Context of IST-140• Topics• Status of our work• Summary
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What is IST-140? (1/2)• NATO
North Atlantic Treaty Organization Intergovernmental military alliance Collective / mutual defence
• Science and Technology Organization (STO) Aim: meet the collective needs of
NATO NATO Nations and partner Nations
in the fields of Science and Technology
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What is IST-140? (2/2)• Information Systems Technology (IST) Panel
advance and exchange appropriate technologies to provide timely, affordable, dependable, secure and relevant information
and to improve C3I systems including special focus on Interoperability and Cyber Security
• IST-140 Research task group below IST panel Researchers from different nations Solve a particular research and technology problem Cognitive Radio Networks
© www.cso.nato.int
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How does the group work?• TTL: Jan. 2015 to Dec. 2017• 3 to 4 meetings per year• Participating nations:
• Build upon the results of other groups (e.g. IST-104 CR in NATO II)
• Investigate challenges and solutions for Cognitive Radio Networks in a military context
• Main output is a report with recommendations
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Our expectations• Get known to the public• Raise interest in the topic • Get
Comments Inputs
• And perhaps welcome new members
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What are Cognitive Radio Networks?• Cognitive Radio: dynamic spectrum access• Networks of Cognitive Radios: legacy network of CR devices• Cognitive Radio Networks: end-to end optimization
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Objectives• Identify
military requirements for CRN usage in joint and combined operations potential capabilities of military CRN as compared to legacy networking networking challenges in CR operation in infrastructure-based and ad-
hoc military networks• Explore
networking solutions for infrastructure-based and ad-hoc CRN solutions to exchange control information taking into account military
requirements technologies for further enhancements system architectures for CRN
• Propose recommendations for specifications, implementations and/or further researches
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CR radios with spectrum agility
etc.
CR radios with spectrum agility
etc.
Waveform(s) with x-layer capability
Waveform(s) with x-layer capability
ScenariosScenarios
CRN theoretical
State-of-the-art
CRN theoretical
State-of-the-art
Emerging CRN waveforms
Emerging CRN waveformsEmerging CRN
waveformsEmerging CRN
waveformsEmerging CRN waveforms
Emerging CRN waveforms
RequirementsRequirements
Testbeds and demonstrationsTestbeds and
demonstrations
Context of IST-140
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Topics• Technologies studied in the context of CRN
Routing: Take into account metrics from CR entities Topology Control: Take into account frequency information Data Transport: TCP and UDP not designed for wireless networks Clustering: part of DLL, but closely related to networking Management: trade-off human control automatization Reliable exchange of control information: Information from both
networking and CR Trust Management: analyse neighbour trustworthiness
• CRN System Architecture
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Status of our work• Scenarios have been selected• State of the art has been described• Challenges are being identified• Still a long way to go…
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Summary• Go beyond Cognitive Radio
Cognitive Radio has a local perspective End-to-end networking perspective is added
• Two nested cognition cycles• We focus on adapting networking techniques
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Thank you!
Any questions?