NASA NTRS · 19920049156
A personal communications network using a Ka-band satellite
Abstract
The 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.
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Palmer, Larry C., Laborde, Enrique, Stern, Alan, Sohn, Philip Y.. 1992-02-01. A personal communications network using a Ka-band satellite. https://ntrs.nasa.gov/citations/19920049156
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