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What is Log-Log SPA for CV-QKD Decoding about?

This paper introduces a novel log-log domain sum-product algorithm (SPA) for decoding low-density parity-check (LDPC) codes in continuous-variable quantum key distribution (CV-QKD) systems, which reduces memory usage and resource consumption while maintaining decoding accuracy. The proposed algorithm achieves at least a 25% reduction in fractional bit width compared to conventional SPAs without increasing decoding iterations or complexity. The study includes practical insights for fixed-point arithmetic and

Author

erdem10139

Language

EN