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A personal communications network using a Ka-band satellite

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4 Author(s)
L. C. Palmer ; Hughes Network Syst. Inc., Germantown, MD, USA ; E. Laborde ; A. Stern ; P. Y. Sohn

The feasibility of a personal communications network using portable terminals that can provide 4.8 kb/s voice communications to a hub station via 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

Published in:

IEEE Journal on Selected Areas in Communications  (Volume:10 ,  Issue: 2 )