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EXTENDING THE INTERNET INTO SPACE
The main objective of the technology is to build a space-suitable set of Internetworking protocols to
allow efficient communications and application diversity. The research for this is mainly funded by the ESA(european space agency)
The particular objectives are:
- alternative communication means for space-to-earth, space-to-space, and
earth-to-space channels
- space-wide transport bus for data processing, monitoring and testing.
The plan is divided into 3 phases:
1.Phase1:
graft space-oriented mechanisms into the
Internet protocol suite and evaluate their performance with simulations.It will help to derive a design directive for space Internetworking.
2.Phase 2:
build a test-bed where actual implementation
and emulation of space conditions will be possible. The protocols and mechanisms
will be implemented and evaluated with diverse applications and devices.
3. Phase 3:
wide deployment through the use of
IP-enabled software specific to actual devices, applications and operations.
Phase 1 goes on now and researchers simulate an experimental protocol stack suitable for space communications. This
stack will include protocols that match the requirements of applications and users, and will be evaluated with standard and experimental Internet protocols when conditions match the space conditions.
A network
simulator simulates the experimental protocols, the conditions of asymmetry,
error patterns and propagation delay. protocol suite for space Internetworking will be designed based on the simulation results. The protocols include mechanisms for:
-Real-time large-data communications for video-audio delivery
-- Reliable transmission for mission critical applications
-Task distribution algorithms and methodologie
-Real-time tiny-data communications
-Routing strategies and route cost assignment
-Prediction strategies to enable best route and strategy selection