Table 4 Performance comparison with prior works using different types of codes.

From: High-throughput GPU layered decoder of quasi-cyclic multi-edge type low density parity check codes in continuous-variable quantum key distribution systems

Refs.
(published year)
Ref.18
(2014)
Ref.17
(2018)
Ref.19
(2018)
Our work
Code type MET QC-MET MET QC-MET
Code rate 0.1 0.1 0.1 0.1
SNR 0.161 0.161 0.160 0.161
\(\beta\) 93.10% 92.86% 93.40% 92.86%
Block length \(2^{20}\) \(2^{20}\) \(10^{6}\) \(10^{6}\)
Z   512   2,500
Average number of iterations 100 78 100 50
Latency per iteration (ms) 1.477 1.466 21.060 39.931
FER 0.04 0.0243 0.055 0.1797
GPU AMD Tahiti Graphics Processor NVIDIA GeForce GTX 1,080 NVIDIA TITAN Xp NVIDIA TITAN Xp
Error correction speed (Mbits/s) 7.10 9.17 30.39 64.11