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High data rates across multiple subnets with prioritization, qua
lity of service
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Provides broadband, protected access towarfighterson the move
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Supports DoD, Intelligence Community, and NASA
FIGURE C-6. THE TRANSFORMATIONAL COMMUNICATIONS ARCHITECTURE.
MILSATCOM through 2015. Under the current schedule WGS, DSCS, and GBS Phase II deployment begins in 2005. Advanced EHF satellite deployment begins in 2005, as well. However, Mobile User Objective System (MUOS) deployment does not begin until 2008, which will require commercial augmentation.
LaserComm
Airborne and orbiting optical data links, or LaserComm, will offer data rates two to five orders of magnitude greater than those of the best future RF systems, and provide a direct connection between high flying UAs, such as Global Hawk, and TSAT in the 2013 time frame. Key technical challenges remain, however. Pointing, Acquisition, and Tracking (PAT) technologies, that ensure the laser link was both acquired and maintained have not yet been perfected. Although LaserComm could surpass RF in terms of airborne data transfer rate, RF will continue to dominate at the lower altitudes for some time into the future because of its better all-weather capabilities.
Information Assurance
IA protection is required in each GIG domain (information, communications, and management and control). The GIG features a protected black core supporting multiple security levels with edge-to-edge protection for information flows (Figure C-7). Key security features will include: authentication/encryption; network control policy functions; packet header masking on high-risk communications; and dynamic intrusion/attack detection and reaction capability.
APPENDIX C - COMMUNICATIONS
Page C-12
FIGURE C-7. BLACK TRANSPORT EDGE-TO-EDGE.
DoD Net-Centric Data Strategy
For data from one computer or software application to be useable in a different computer or software application, that data must be in a format that is compatible to both. Traditionally, DoD has accomplished this compatibility through data administration, standardizing and controlling data element definitions and structures across the DoD enterprise. This approach proved too cumbersome, in part due to the constantly evolving technology and in part due to the sheer scope of the enterprise.
DoD/CIO has since published an updated approach to achieving data interoperability called the DoD Net-Centric Data Strategy. This approach expands the focus beyond mere standardization of format, to making data visible and accessible across the network. It recognizes that in addition to predefined sets of users, there will be unanticipated users requiring access to the data. The key tenet to this strategy is the development, registration and publication of metadata. This allows developers full access information about data made available and simplifies the creation of interfaces to feed the data to various applications. Complete information regarding the DoD Net-Centric Data Strategy is available at the DoD Metadata Registry and Clearing house at http://diides.ncr.disa.mil/mdregHomePage/mdregHome.portal.
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