Blockage mitigation techniques in satellite communications

Blockage mitigation techniques in satellite communications

This article proposes systematic approaches to minimize severe channel degradation. Detection of channel condition is performed by means of two continuous ARQ NAK counting schemes. Stop-and-wait ARQ non-NAK counting is used for timed complete blockage. A single (31,21,5) code is designed for all the...

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Veröffentlicht in:IEEE wireless communications 2005-10, Vol.12 (5), p.10-13
1. Verfasser: Wu, W.W.
Format: Artikel
Sprache:eng
Schlagworte:
Automatic repeat request
Bandwidth
Blockage
Channels
Counting
Degradation
Earth stations
Error correction codes
Feedback
Forward error correction
Radio frequency
Remedies
Satellite communication
Satellite communications
Space vehicles
Tradeoffs
Transponders
Wireless communication
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Beschreibung
Zusammenfassung:This article proposes systematic approaches to minimize severe channel degradation. Detection of channel condition is performed by means of two continuous ARQ NAK counting schemes. Stop-and-wait ARQ non-NAK counting is used for timed complete blockage. A single (31,21,5) code is designed for all the ARQ systems proposed. After the blockage state of a transmission channel is determined, satellite link parameter trade-offs and other specific remedy alternatives are recommended to enhance channel performance. System performance criteria are derived with different Earth station capabilities.
ISSN:1536-1284
1558-0687
DOI:10.1109/MWC.2005.1522098