Earth-station size vs. error-correction coding in the design of Ku-band satellite communications systems
Abstract
A Ku-band satellite transponder capacity is evaluated for a PCM/QPSK/FDMA system in which many carriers are transmitted in an SCPC mode. The capacity depends on earth-station sizes, error-correction coding, required signal-to-noise ratio and required availability in rain; for simplicity all of these parameters are assumed to be the same for all carriers in the transponder. A method of accounting for the effects of rain is developed; it is assumed that the earth-stations do not adjust their output power when it rains. Trade-offs between earth-station sizes and error-correction code rates are examined.
- Publication:
-
International Journal of Satellite Communications
- Pub Date:
- December 1984
- Bibcode:
- 1984IJSC....2..269M
- Keywords:
-
- Channel Capacity;
- Communication Satellites;
- Earth Terminals;
- Error Correcting Codes;
- Signal Encoding;
- Superhigh Frequencies;
- Systems Engineering;
- Frequency Division Multiple Access;
- Phase Shift Keying;
- Pulse Code Modulation;
- Satellite Transmission;
- Single Channel Per Carrier Transmission;
- Transponders;
- Communications and Radar