A high reliability error control technique for deep space exploration

Abstract

Due to the large error correction capacity of stochastic and burst errors, Reed-Solomon codes are widely employed as error control codes in various occasions of uplink data control in deep space exploration. This paper investigates one of the decoding techniques of CCSDS RS (255, 223) code based on soft decision adaptive belief propagation algorithm. In order to reduce the complexities and improve decoding efficiency, an improved ABP algorithm with more inner BP iterations is proposed, which deduces the number of outer full iterations. Simulation results, by optimizing the number of outer iterations and inner iterations, show that, the proposed technique gains almost one times in decoding efficiency, while providing close decoding performance.