Evaluation of LDPC Forward Error Correction Schemes for Telemetry Satellite Systems
نویسنده
چکیده
This paper evaluates the proposed implementation of short length low density parity check (LDPC) codes within the telemetry space protocol. Due to the varying orbital patterns of low earth orbit (LEO) satellites, limited communication time windows need to be optimised to maximise data throughput. Most popular connection oriented protocols focus on correcting congestion related link errors, but with a unique set of link related bit errors introduced on the satellite channel, conventional protocols degrades the performance of LEO satellite communication. The telemetry (TM) protocol specified by the European Cooperation for Space Standardisation will be evaluated with a mission specific implementation for error control coding. Using iterative decoding schemes, short length LDPC show large coding gains with low complexity hardware requirements. A coding scheme implementing an approximation algorithm is shown as a low complexity solution with good error performance.
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