SISO Tactical Datalink TDL Study GroupSG

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SISO Tactical Datalink (TDL) Study Group(SG)

• Fall 2002 SIW SAC Update

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TDL SG Leadership

• Adin Burroughs, TACCSF/SRC
• TDL SG Chair
• Joe Sorroche, TACCSF/ASRCC
• TDL SG Vice Chair
• Neil Barrett, JITC
• TDL SG Vice Chair
• Dr. Rob Byers, Northrop Grumman IT (DMT
  Standards)
• TDL SG Secretary
• Thomas Mullins, NAIC
• SAC Representative

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TDL SG Introduction Goals

• Create a standard that can be used to exchange
  datalink data!
• Submit proposals for changes to DIS EBV Document
• Formatting of data inside PDUs
• Usage of PDUs
• TDL Enumerations
• Provide HLA guidelines for BOM implementation

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TDL SG Approach

• Draft changes to the DIS EBV document
• Submit as package of changes after SG approval
• Goal is Jan 03 Submittal to EBV document
• Kick-Off PDG to develop SISO Standard from TDL SG
  Product
• Avoid any changes to the IEEE Specifications, if
  at all possible
• Identify HLA methods and approaches from work in
  DIS

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TDL SG History

• Jul 01- TACCSF internal project to review current
  DIS Link-16 Implementation
• Oct 01 - Formed grass roots working group after
  community response to informal inquiries
• Nov 01- Meeting at I/ITSEC
• Initial Presentation of ideas, technical
  discussion
• Decided to pursue becoming official SISO Study
  Group
• Dec 01 - SISO EXCOM Approves TOR
• Feb 02 - SG Reflector, AFAMS webpage established
• Mar 02 - First official meeting of TDL SG (Spring
  SIW)
• Jun 02 - Interim SG meeting at TACCSF
• Jul 02 - SG Meeting at Euro-SIW
• Sep 02 - SG Meeting at Fall SIW
• Sep 02 Link-16 PDG Kickoff

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TDL SG Fall 02 SIW

• Update of SG Activities

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TDL SG Fall 02 UpdateInterim Meeting (4 Jun 02)

• Covered
• A.I. 30 JTIDS Communications Modes 1, 2,4
• A.I. 31 Bandwidth restrictions for Low Fidelity
  Participants
• A.I. 11 Perceived Transmit Time
• A.I. 14 DIS timestamp as unique network
  synchronization ID
• A.I. 21 VMF/LET Signal PDU Structure
• A.I. 17 Timeslot Identification
• A.I. 23 DIS Voice Signal PDU Structure
• A.I. 15 FORSCOM/SPO/JITC Review
• Significant discussion on timeslot ID structure
  and JTIDS voice implementation (Minutes of SISO
  TDL SG meeting)

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TDL SG Fall 02 UpdateEuro SIW

• Invited to present at Fall TDL ITS Meeting
• Recommended to make TDL SG product a formal SISO
  standard
• First Presentation of HLA Implementation
  Brainstorms
• TDL Family of BOMs
• Time Services Real time vs Non Real-Time
• Differing fidelity levels translated into HLA
• Significant interest from Allies on HLA version
  of standard
• Potential upgrade from current version of SIMPLE
• Australia Virtual Ship program already requesting
  the BOM for integration

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TDL SG Fall 02 Update Post Euro-SIW

• Issuance of first formal revision of draft
  protocol
• 02F-SIW-119 TADIL TALES
• All HLA is currently TBD
• Link-16 Simulation Standard Product Nomination
  approved by SISO
• Kickoff at Fall SIW
• Interim meeting to occur at I/ITSEC 02
• Balloting tentatively to begin after Spring 03
  SIW
• First changes to DIS-EBV submitted, part of
  Change Block 2.

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TDL SG Fall 02 UpdateImplementation Project

• Northrop Grumman currently implementing DIS-J
• Fidelity Level of 3 (No high fidelity
  synchronization)
• Initial Testing occurred 3-6 September
• Tested level 1 (Message Format and NTR play)
• Project to complete by 27 September
• Final testing to occur at TACCSF 24-26 September
• Currently investigating methods to implement and
  test fidelity level 4

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TDL SG _at_ Fall 02 SIW

• Sunday Link-16 PN Development
• Monday Morning SAC Briefing
• Tuesday TDL SG Meeting (02F-SIW-119/120), AF
  Night
• Wednesday SISC
• Thursday C4I Forum Update Briefing
• Friday TDL SG Outbrief
• ?? PDG Kickoff?

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TDL SG Fall SIW 02 UpdateWay Ahead

• TDL SG will be briefing at
• NATO TDL ITS (Sept 02)
• NMIA Datalinks Conference (Nov 02)
• International Data Link Symposium (Oct 02)
• (Tentative) DISA Link-16 OIRG/DLWG (TBD)
• PDG Kickoff
• Complete submittals of changes to DIS-EBV
• Next Year TOR for TDL Study Group?
• HLA completion of Link-16 (if needed)
• Link-11A, 22, TIBS?
• Standards work outside SISO? (NATO/DISA?)

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BackUp Slides
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TDL SG Expertise

• Working knowledge of JTIDS
• MIL-STD 6016A/B
• Working knowledge of TADIL-J/Datalinks
• Working knowledge of DIS HLA
• IEEE 1278.1 IEEE 1516
• Working Knowledge of radio frequencies/propagation
  
• Working knowledge of simulators
• Working knowledge of C2

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TDL SG On-Line Resources

• AFAMS Hosted Discussion Server Document
  Repository
• http//www.afams.af.mil
• Click on programs and exercises, listed on this
  page
• Discussion Server still in beta form
• SISO Reflector
• http//www.sisostds.org
• DMSO Reflector
• Currently not in use, has archives for Nov-Jan 01

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TDL SG Terms of Reference

• TDL SG TOR

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Challenges with Current Standard

• Standard lacks detail for interoperability
• Multiple implementations in the wild
• Ability to exchange TADIL-J messages, no ability
  to simulate JTIDS networks
• No standard enumeration list for TDL types

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Goals for New Standard

• Standard, interoperable implementation
• Easy initial implementation
• Minimal impact on current users, e.g. NATO SIMPLE
  Standard
• Ability to ease transition from old formats to
  new
• Effects level simulation of JTIDS net
• Ability to route datalink data separately from
  truth data
• Minimize bandwidth utilization
• Discrete definitions of fidelity
• Identify FOM/SOM data items for HLA JTIDS
  emulation

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Goals for New StandardEffects to be simulated

• Timeslot allocation/metering of data with nominal
  values or from an actual NDL
• Segmenting of data into NPGs
• Segmenting of data into Nets
• Multi-netting
• Crypto-netting
• Net entry procedures
• Synchronization
• Multiple NTRs

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Goals for New StandardEffects to be simulated

• Relnav
• Multiple JTIDS units transmitting at same time
• Waveform/RF simulation
• Antenna, propagation details

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Goals for New StandardEffects not covered

• Individual Pulses
• Effects of conflicting pulses if hopping patterns
  coincide