HF Radio Standards Development & NATO HF Working Group Report

January 2002

Eric E. Johnson

Science Applications International Corporation

& New Mexico State University

eejohnson @ ieee.org

MIL-STD Development Status

• 188-110B – Data Modems Published

• 188-141B – Radio & Protocols Published Change Notice 1 delivered to IXMP 9/01– Appendix C: Third Generation Protocols– Appendix E: Application Protocols (incl. E-Mail)– Appendix F: Anti-Jam/Anti-Interference– Appendix G: Data Link Protocol

• http://wireless.nmsu.edu/hf/standards/MIL/

188-141B Notice 1: Appendix C

• Existing 3G protocols revised to match STANAG 4538

• 3G ALE dwell = 5+1 slots of 900 ms

• NATO-Mode addressing

• Added LDL packet sizes

• Revised HDL sequence numbering

188-141B Notice 1: Appendix E

• CFTP is now standardized for US interop

Deployed in “5066” systems but not

specified in STANAG 5066

• HF Mail Transfer Protocol (HMTP)

Revised to match STANAG 5066

Mandatory for interop with 5066 and

for future PKI architecture

HF E-Mail Protocol Structure

HMTP

CFTP

BFTP

RCOP IP

Subnet Interface

2G 3G

Radio

IP Clients

Pick One

3 12 9

188-141B Notice 1: Appendix F

• Anti-jam / Anti-interference Techniques

• Updated to track changes in Appendix C

188-141B Notice 1: Appendix G

• Second Generation Data Link Protocolfor use with MIL-STD-188-110B modems

• Now points directly to STANAG 5066:

Annex A – Subnetwork Interface Sublayer

Annex B – Channel Access Sublayer

Annex C – Data Transfer Sublayer

NATO HF Radio Ad Hoc Working Group

• Sierra Vista, AZ May 2001

• Koblenz, Germany November 2001

• Livorno, Italy June 2002

US – NATO Convergence

Protocols 141B w/Notice 1 4538

3G ALE"Robust" Yes (5 slots)   Yes (5 slots)  

"Fast" No Yes

3G ARQLDL Yes YesHDL Yes Yes

2G ALE Yes -> 141

2G ARQ -> 5066 supports 5066

US – NATO Convergence

HF STANAG Status

• 4415 – Robust WF PromulgatedMultiple implementations

• 4444 – EPM PromulgatedGerman prototype

• 4538 – ARCS PromulgatedUS-UK-NL-NO air trialschairman: “stunning results”

HF STANAG Status (cont’d)

• 4539 – Waveforms only 4 nations ratified,so not yet promulgated.multiple implementations

• 5066 – Datacomms Promulgatedmultiple implementations

– Planned edition 2: mandatory email protocolcompliance w/4406

messaging

– Possible edition 3: LAN/WAN operations

NC3Board(AC/322–D/20)

“By developing a modern, adaptive, and flexible HF system, much of NATO’s messaging, data, data link, facsimile and voice requirements could be met within the HF band. This will reduce the demand for scarce SATCOM resources to those requirements that genuinely need large bandwidths.”

Power-Line Data Communications

• Emerging home networking/broadband access technology in Europe

• Operates in HF band; may raise noise floor

• Netherlands commencing tests of power-line communications interference with HF

• Doesn’t appear economically feasible in North American power distribution system

Other Projects

• Ground Routing Protocol: ACP 193

• Initial work on video/image transfer over HF

• Wideband data comms:– ISB modems as in MIL-STD-188-110B App F– Adaptive use of non-contiguous channel groups