On board processing for future satellite communications systems: Comparison of FDM, TDM and hybrid accessing schemes
Abstract
Several satellite uplink and downlink accessing schemes for customer premises service are compared. Four conceptual system designs are presented: satellite-routed frequency division multiple access (FDMA), satellite-switched time division multiple access (TDMA), processor-routed TDMA, and frequency-routed TDMA, operating in the 30/20 GHz band. The designs are compared on the basis of estimated satellite weight, system capacity, power consumption, and cost. The systems are analyzed for fixed multibeam coverage of the continental United States. Analysis shows that the system capacity is limited by the available satellite resources and by the terminal size and cost.
- Publication:
-
Final Technical Report Mitre Corp
- Pub Date:
- June 1982
- Bibcode:
- 1982mitr.rept.....B
- Keywords:
-
- Downlinking;
- Frequency Division Multiple Access;
- Onboard Data Processing;
- Satellite Design;
- Spacecraft Communication;
- Time Division Multiple Access;
- Uplinking;
- Communication Networks;
- Cost Analysis;
- Earth Terminals;
- Extremely High Frequencies;
- Microprocessors;
- Microwave Antennas;
- Power Amplifiers;
- Radio Transmitters;
- Satellite Antennas;
- Transponders;
- Traveling Wave Tubes;
- Communications and Radar