20/30 GHz satellite personal communications networksThe feasibility of personal communications networks that can provide 4.8-kbps voice communications between portable terminals and 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 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 with a chip rate of 2.5 Mchip/sec.
Document ID
19920047215
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Palmer, L. C. (Hughes Network Systems Germantown, MD, United States)
Stern, A. (General Electric Co., Astro Space Div., Princeton NJ, United States)
Sohn, P. Y. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Communications And Radar
Report/Patent Number
AIAA PAPER 92-1908
Meeting Information
Meeting: AIAA International Communication Satellite Systems Conference and Exhibit