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A personal communications network using a Ka-band satelliteThe feasibility of portable communications terminals that can provide 4.8-kbps voice communications to a hub station via a Ka-band geosynchronous satellite was investigated. Tradeoffs are examined so that the combined system of the 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 is described using a spacecraft with approximately 140 spot beams that cover CONUS with 5-watt power amplifiers in each beam. 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/sec. An experiment is recommended using the Advanced Communications Technology Satellite (ACTS) to demonstrate some of the features of the portable terminal concept.
Document ID
19920021690
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Palmer, L. C. (Hughes Network Systems, Inc., Germantown MD., United States)
Stern, A. (General Electric Co. Princeton, NJ., United States)
Sohn, P. Y. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
September 15, 1991
Publication Information
Publication: JPL, Proceedings of the Workshop on Advanced Network and Technology Concepts for Mobile, Micro, and Personal Communications
Subject Category
Communications And Radar
Accession Number
92N30934
Funding Number(s)
CONTRACT_GRANT: AC-90-695
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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