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10 October 2020 High-throughput error correction for continuous-variable quantum key distribution systems based on shuffled iterative decoding
Yang Li, Bingjie Xu, Li Ma, Jie Yang, Wei Huang, Heng Wang, Yujie Luo
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Proceedings Volume 11558, Quantum and Nonlinear Optics VII; 115580R (2020) https://doi.org/10.1117/12.2574960
Event: SPIE/COS Photonics Asia, 2020, Online Only
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Abstract
Throughput of error correction is the bottleneck of the postprocessing for continuous-variable quantum key distribution system. In this paper, a shuffled iterative decoding method is proposed to reduce the number of iterations for error correction. For three typical code rate, i.e., 0.1, 0.05, 0.02, our results show that the maximum decoding speed is up to 72.86 Mbits/s, 53.96 Mbits/s and 42.45 Mbits/s, respectively, which significantly improves the real-time processing capacity of continuous-variable quantum key distribution system.
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Yang Li, Bingjie Xu, Li Ma, Jie Yang, Wei Huang, Heng Wang, and Yujie Luo "High-throughput error correction for continuous-variable quantum key distribution systems based on shuffled iterative decoding", Proc. SPIE 11558, Quantum and Nonlinear Optics VII, 115580R (10 October 2020); https://doi.org/10.1117/12.2574960
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KEYWORDS
Quantum key distribution
Signal to noise ratio
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