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Tiger uses interest and location-based information
dissemination protocol, supporting Automatic Geographical Publish and
Subscribe (AGPS) information broker and secure tactical messaging
services, to ensure the delivery of the information at the right time
to the right user, down to the single vehicle level. Subscribers
receive all, yet only relevant information, according to their
geographic location, defined topics of interest, including subject
related and geographic related interest.
The network's AGPS brokers rely on broadband connections to receive
and distribute information, thus reducing the overall demand for
networking resources. Routing is determined by dynamically weighing
various criteria including shortest path, hierarchy, classification,
priorities, connectivity and channel capabilities. Each broker gathers
subscriber's topics and areas of interest and disseminates this
information when required. Each broker is responsible for a group of
stations and servers as works as their mediator to the rest of the
network. Placed at strategic nodes, some brokers are enhanced to
perform as "gateways", supporting the network with inter-network
connectivity functions. Such gateways are dividing the network into
clusters thus reducing message flow while improving delivery time.
Another element of TIGER is the Tactical Message Oriented Middleware (TMOM),
providing seamless transfer of messages between C4I applications over
different communications channels. Messages are dispatched by "store
and forward" techniques routed through optimal, secured and economical
dynamic paths. The system automatically retransmits undelivered
messages and sends acknowledgements to assure delivery. Messages are
automatically be routed around or within any sub-net which has been
temporarily disconnected from the tactical intranet to overcome
intentional or unintentional service disruptions.
Tiger supports thousands of independent user, empowering every user
station to operate as a router, thus establishing an add-hoc routing
paths throughout battlespace. The network follows automatic, dynamic
and adaptive learning of optimal network topology to support
self-forming and self-healing functions, enabling effective and
reliable communications coverage for highly dynamic operations. The
TIGER architecture supports the coexistence of legacy and modern
systems by using media adapters interfacing the applications and
communications networks. These proprietary communications controllers
enable the integration of hierarchical networks into the unified,
dynamic, homogeneous, self-manageable network. TIGER support wireless
communications including VHF/HF tactical radios, high capacity data
radios, satellite links, wide area networks, wireless LANs and
cellular communications. The system is protected by multilayer
security levels. |
