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Multiple Access Schemes for Lunar MissionsTwo years ago, the NASA Coding, Modulation, and Link Protocol (CMLP) study was completed. The study, led by the authors of this paper, recommended codes, modulation schemes, and desired attributes of link protocols for all space communication links in NASA's future space architecture. Portions of the NASA CMLP team were reassembled to resolve one open issue: the use of multiple access (MA) communication from the lunar surface. The CMLP-MA team analyzed and simulated two candidate multiple access schemes that were identified in the original CMLP study: Code Division MA (CDMA) and Frequency Division MA (FDMA) based on a bandwidth-efficient Continuous Phase Modulation (CPM) with a superimposed Pseudo-Noise (PN) ranging signal (CPM/PN). This paper summarizes the results of the analysis and simulation of the CMLP-MA study and describes the final recommendations.
Document ID
20150008850
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Deutsch, Leslie
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hamkins, Jon
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Stocklin, Frank J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
May 26, 2015
Publication Date
April 25, 2010
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Lunar And Planetary Science And Exploration
Meeting Information
Meeting: SpaceOps Conference 2010
Location: Huntsville, AL
Country: United States
Start Date: April 25, 2010
End Date: April 30, 2010
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Other

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