NDLI: Hybrid mobile communication networks for planetary exploration

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Hybrid mobile communication networks for planetary exploration

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lee Sr., Charles Stone, Thom Walker, Edward Alena, Richard Osenfort, John
Copyright Year	2007
Description	A paper discusses the continuing work of the Mobile Exploration System Project, which has been performing studies toward the design of hybrid communication networks for future exploratory missions to remote planets. A typical network could include stationary radio transceivers on a remote planet, mobile radio transceivers carried by humans and robots on the planet, terrestrial units connected via the Internet to an interplanetary communication system, and radio relay transceivers aboard spacecraft in orbit about the planet. Prior studies have included tests on prototypes of these networks deployed in Arctic and desert regions chosen to approximate environmental conditions on Mars. Starting from the findings of the prior studies, the paper discusses methods of analysis, design, and testing of the hybrid communication networks. It identifies key radio-frequency (RF) and network engineering issues. Notable among these issues is the study of wireless LAN throughput loss due to repeater use, RF signal strength, and network latency variations. Another major issue is that of using RF-link analysis to ensure adequate link margin in the face of statistical variations in signal strengths.
File Size	38782
Page Count	1
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20090041670
Archival Resource Key	ark:/13960/t50g8n55j
Language	English
Publisher Date	2007-03-01
Access Restriction	Open
Subject Keyword	Man/system Technology And Life Support Transmitter Receivers Spacecraft Orbits Radio Frequencies Prototypes Deployment Space Exploration Communication Networks Robots Interplanetary Communication Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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