SYSTEMS AND METHODS FOR USING ADAPTIVE CODING AND MODULATION IN A REGENERATIVE SATELLITE COMMUNICATION SYSTEM

Techniques are described for implementing adaptive coding and modulation (ACM) in regenerative satellite systems to adapt the modulation and/or FEC coding of transmitted waveforms to the conditions of the link. In one implementation, ACM is implemented on an uplink from a terminal to a regenerative...

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Bibliographische Detailangaben
1. Verfasser:	CHOQUETTE, George
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	Techniques are described for implementing adaptive coding and modulation (ACM) in regenerative satellite systems to adapt the modulation and/or FEC coding of transmitted waveforms to the conditions of the link. In one implementation, ACM is implemented on an uplink from a terminal to a regenerative satellite (540). In this implementation, an uplink modulation and coding combination (ModCod) is estimated by the transmitting terminal (520) based on the quality of signals received from the regenerative satellite on the downlink. The regenerative satellite may reencode and remodulate the packet using the ModCod indicated in the field of the packet header.