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A personal communications network using a Ka-band satelliteThe feasibility of a personal communications network using portable terminals that can provide 4.8-kb/s voice communications to a hub station via a Ka-band geosynchronous satellite has been investigated. Tradeoffs are examined so that the combined system of hub and gateway earth stations, the satellite, and the personal terminals can provide a competitive service in terms of cost, availability, and quality. A baseline system that uses a spacecraft with approximately 140 spot beams to cover the contiguous US (CONUS) and 5-W power amplifiers in each beam is described. Satellite access in both the forward and return directions uses frequency-division multiple-access/code-division multiple-access (FDMA/CDMA) with a chip rate of 2.5 Mchip/s.
Document ID
19920049156
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Palmer, Larry C.
(NASA Lewis Research Center Cleveland, OH, United States)
Laborde, Enrique
(Hughes Network Systems, Inc. Germantown, MD, United States)
Stern, Alan
(GE Astro Space Princeton, NJ, United States)
Sohn, Philip Y.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 15, 2013
Publication Date
February 1, 1992
Publication Information
Publication: IEEE Journal on Selected Areas in Communications
Volume: 10
ISSN: 0733-8716
Subject Category
Communications And Radar
Accession Number
92A31780
Distribution Limits
Public
Copyright
Other

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