DocumentCode :
3511978
Title :
Performance Characterization of Space Communications and Navigation (SCaN) Network by Simulation
Author :
Jennings, Esther ; Heckman, David
Author_Institution :
Jet Propulsion Lab., Pasadena, CA
fYear :
2008
fDate :
1-8 March 2008
Firstpage :
1
Lastpage :
9
Abstract :
As future space exploration missions will involve larger number of spacecraft and more complex systems, theoretical analysis alone may have limitations on characterizing system performance and interactions among the systems. Simulation tools can be useful for system performance characterization through detailed modeling and simulation of the systems and its environment. To simulate space-based networks, we have developed the multi-mission advanced communications hybrid environment for test and evaluation (MACHETE) tool which captures the unique characteristics of space networking for performance assessment and end-to-end test evaluation. This tool contains orbital and planetary motion kinematics models, link engineering models, traffic load generation models and communication protocol models. This paper reports the simulation of the Orion (crew exploration vehicle) to the International Space Station (ISS) mission where Orion is launched by Ares into orbit on a 14-day mission to rendezvous with the ISS. Communications services for the mission are provided by the Space Communication and Navigation (SCaN) network infrastructure which includes the NASA Space Network (SN), Ground Network (GN) and NASA Integrated Services Network (NISN). The objectives of the simulation are to determine whether SCaN can meet the communications needs of the mission, to demonstrate the benefit of using QoS prioritization, and to evaluate network key parameters of interest such as delay and throughput.
Keywords :
protocols; quality of service; space communication links; space vehicles; telecommunication traffic; Ground Network; International Space Station; NASA Integrated Services Network; NASA Space Network; Orion; QoS prioritization; communication protocol models; complex systems; crew exploration vehicle; end-to-end test evaluation; multi-mission advanced communications hybrid environment tool; space communications; space exploration missions; space navigation network; space-based networks; traffic load generation models; Load modeling; NASA; Navigation; Performance analysis; Planetary orbits; Space exploration; Space missions; Space vehicles; System performance; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Aerospace Conference, 2008 IEEE
Conference_Location :
Big Sky, MT
ISSN :
1095-323X
Print_ISBN :
978-1-4244-1487-1
Electronic_ISBN :
1095-323X
Type :
conf
DOI :
10.1109/AERO.2008.4526335
Filename :
4526335
Link To Document :
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