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AGENDA

Disruption Tolerant Networking (DTN) PI Meeting 2 August 2005 Introduction Preston Marshall, DARPA PM. AGENDA. 8:00 – 8:30 AM Registration and Continental Breakfast 8:30 – 8:45 AM Welcome Address: David Honey, ATO Office Director 8:45 – 9:00 AM DARPA Vision: Preston Marshall, DARPA PM

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AGENDA

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  1. Disruption Tolerant Networking(DTN) PI Meeting2 August 2005IntroductionPreston Marshall, DARPA PM

  2. AGENDA 8:00 – 8:30 AM Registration and Continental Breakfast 8:30 – 8:45 AM Welcome Address: David Honey, ATO Office Director 8:45 – 9:00 AM DARPA Vision: Preston Marshall, DARPA PM 9:00 – 9:30 AM Reseach Perspective:Vint Cerf 9:30 – 9:50 AM Seaweb: Joe Rice, NPS/SPAWAR 9:50– 10:00 AM Break 10:00 – 11:15 AM DTNRG/JPL/NASA/MITRE (Adrian Hooke, Keith Scott, Leigh Torgerson, Scott Burleigh) 11:15 AM – 12:05 PM The SPINDLE Architecture & Implementation: Rajesh Krishnan, BBN 12:05 – 12:50 PM Lunch 12:50 – 1 PM Don Wunsch, Univ. Missouri, Rolla 1:00 – 1:20 PM Ellen Zegura, GaTech & UMass 1:20 PM – 1:40 PM Mooi Choo Chuah, Lehigh Univ. 1:40 PM – 2:00 PM Mark-Oliver Stehr - SRI/Univ. Illinois 2:00 PM – 2:15 PM Closing Remarks, Preston Marshall 2:15 PM – 2:30 PM Break 2:30 PM – 4:30 PM roundtable discussion of implementation & integration 4:30 PM – 6:30 PM Reception (hors d’oeuvres)

  3. Wireless networks need diverse routing behaviors: “Open Biggest Battery First” (Battery-powered systems) “Use Advantaged Node Last” (Transient aircraft nodes) “Open Least Tx Energy Path First” (Energy-starved systems) “Open Least Used Reasonable Path First” (Fairness) Extend - don’t replace - COTS products Technology for a Common Routing Structurewith Mission-Unique Algorithms Commercial World DoD Infrastructure DoD Sensor Field minimal protocol set Core/Interoperable Core/Interoperable Core/Interoperable GIG-unique routing algo. battery-aware routing algo. UAV flight schedule UAV flight schedule Core/Interoperable vendor-unique extension Color Legend: Commercial DTN Extension IRG DTN Network Standard Core Military DTN Extensions

  4. Rather than flood IETF with RFCs, develop technology for a common algorithmic routing “backplane”, allow anyone to build an extension or routing algorithm spec “what”, leave “how” extensible open up COTS routers so that users can “plug in” new routing algorithms allow anyone to build a plug-in extension/algorithm extend network equipment vendors’ core product provide backward compatibility with commercial product while enabling extensions for DoD-specific needs – avoid stovepipes Multiple performers stress the backplane and test that the framework is extensible Encourage network equipment vendors to pick up DTNRG avoid the build-our-own mentality for DoD-specific uses enhance commercial products via DTNRG extensibility DTN Technical - Routing Backplane

  5. Bundle Engine Autoconfiguration/ Neighbor Discovery Bundle Custody Transfer Bundle Encryption Bundle End-to-end Reliability Bundle Flow/Congestion Ctl. Bundle TBD Services DTN Policy/Management “DARPA” Routing Protocol Environmental Awareness “DTNRG” Routing Protocol Other Routing Protocol Convergence Layer Common ComponentsSpecific Instantiations Common Components Environments Tactical IPN Sensor Net Other (TBD) Bundle Engine Bundle Engine Bundle Engine Specific Instantiations Autoconfiguration/ Neighbor Discovery Autoconfiguration/ Neighbor Discovery Bundle Custody Transfer DOD-Specific Encryption Bundle Custody Transfer Bundle Encryption Bundle End-to-end Reliability Bundle Flow/Congestion Ctl. Bundle End-to-end Reliability Bundle Custody Transfer DTN Policy Control IPN Management Power Management “DARPA” Routing Protocol Environmental Awareness Scheduled Routing Environmental Awareness Tree-based Routing Protocol Convergence Layer Convergence Layer Convergence Layer TCP UDP LDPC LTP TCP Zigbee MANET-A (mobility rate, …) SATCOM-A (BER, Delay, …) Deep Space Net Proximity Net Mote Net

  6. 80% utilization – 100% reliability – 20% availability 20 nodes, grid of 4x5 Queues filled at simulation initiation Bandwidth used hop-to-hop (earned value from data moved towards destination) On/off time distribution – asynchronous blocking with random duration & opportunity for a range of average availability Distribution of message sizes Trusted delivery End-to-end authentication (not hop-by-hop) Pre-placed certificates No D-DOS entry to DTN regions thru DTN gateways Go/No Go Phase 1 Metric Details

  7. DTN Program Plan FY2009 FY2008 FY2007 FY2005 FY2006 Phase 1: Tech Dev. Program Kickoff Develop DTN Tech and Simul. Environ. Simulate Fuzzy Scheduling, Policy, Late Binding Demo & Analysis Phase 1: Tech Maturation Planning, Scheduling, Routing Algorithms Enhanced Disruption/Fault Tolerant Bundle Delivery Reliability & Network Design DTN Spec & Architecture Kickoff FY2006 1 Go/No Go Source Selection for Phases 2 & 3 Phase 2 Bundle Mech. Devel. Late Binding Demo Policy Language Control MOA Established System Demo 1 March 2005: initiation delay Signed MOA 2 August 2005 Go/No Go 2 Phase 3 Integrated Bundling Devel. Late Binding Development Fabricate Demo System Military Integration Demo in IP Network Program Review Equip/Tech Review Demo Review Initial Design Review Final Design Review 2 August 2005 Final Demo 3

  8. Perspective 100% This might happen! % of proposal completed Beginning of Phase Elapsed time End of Phase

  9. Perspective 100% This generally happens! % of proposal completed Beginning of Phase Elapsed time End of Phase

  10. Perspective 100% This never happens! % of proposal completed Beginning of Phase Elapsed time End of Phase

  11. Perspective 100% % of proposal completed We hope you’re somewhere in this region! 50% Beginning of Phase Elapsed time End of Phase

  12. DTN BAA/GNG Accelerated Timeline 1 May 1 Dec 1 Feb 1 Mar 1 Sep 1 Aug 1 Jan 1 Apr 1 Oct 1 Nov 2005 2006 TI Mtg 2 Aug PM release to staffing proposal submission deadline start developing BAA BAA release GNG/SSB briefing end of 1 funding G/NG evaluation 1 G/NG evaluation 2

  13. DTN BAA/GNG Timeline with Gap 1 Aug 1 Nov 1 Dec 1 Jan 1 Feb 1 Mar 1 Apr 1 Jun 1 Jul 1 Aug 1 Sep 1 Oct 1 May 2005 2006 TI Mtg 2 Aug start developing BAA beginning of 2 (??) PM release to staffing BAA release end of 1 funding GNG/SSB briefing proposal submission deadline G/NG evaluation

  14. Integration/Demonstration Complexity/Emergent Behavior Security Where is it all heading? Phase 2 Goals & Issues

  15. Adaptive Radio Avoids Solving All Problems Itself Each Technology Can Throw “Tough” Situations to other More Suitable Technologies without Impact on User QOS Topology Planning Re-plan Topology Spectrum Planning Re-plan Across Network Network-Wide MIMO Spectrum Too Tight No Good MIMO Paths Dynamic Spectrum Need More Range Relocate Around Spur Unavoidable Strong Signal Radio Device Move to New Preselector Band Device Spurs, … Beam Forming Nulling Strong Neighbor Signal Link

  16. Hardware Platform GPS Access Interleaved by Connectionless Networking Digital Post Processing • Single RF Processing Slice Replicated to form 1, 2 and 4 channel MIMO/XG/ Beamforming Capable Radios • Reverse of Standard ATO Approach • Build Early H/W and Incrementally Add Network Capability • Have Early Demonstrator of DARPA Philosophy and Technology • Develop early Prototypes By Leveraging Available Commercial Chips (TV-Tuners and Others) • Contribution from Proposed MEMs Filter Program Highly Desirable Control - Based MANET New Technology New Technology Dynamic MIMO Spectrum (MnM) (XG) COTS Chip Set

  17. Utilize More Network Models Application Application TODAY’S! Network Centric Connection Transport Layer Connection Transport Layer Connectionless Transport Layer Connectionless Transport Layer • Assumption: • You can create a High Service Quality Connection-Oriented Service on top of a connectionless network Layer • Issues: • Poor QOS in high demand channels, • Correlated Demand, • IP Overhead on Every Packet!!! Connectionless Network Layer Connection Network Layer Connectionless Network Layer Media Access Media Access Physical Physical

  18. Disruption Tolerant High QOS Streaming Internet Protocol Ver 4 Internet Protocol Ver 6 Adaptive Topology Fixed Key to Low Cost/High QOS is Interactive Layers Adaptive Network Topology Adaptive Network Techniques Adaptive Physical Layer Techniques Dynamic Spectrum Fixed MIMO Affordable, Replicated Hardware Implementation Spur Limited Ranges Spur Free Ranges High Multipath Regions Low Multipath Regions

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