Ultra-Low-Rate Information Reconciliation: Repetition Coding or Dedicated Codes?
Abstract
We compare repetition-based ultra-low-rate information reconciliation with dedicated ultra-low-rate codes for CV-QKD. Repetition coding offers a favorable performance-complexity trade-off, incurring only a moderate error-rate penalty while reducing decoding complexity by 2×, making it attractive for implementation-constrained systems.
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