Study on error reconciliation in quantum key distribution
(pp1117-1135)
Qiong
Li, Dan Le, Haokun Mao, Xiamu Niu, Tian Liu, and Hong Guo
doi:
https://doi.org/10.26421/QIC14.13-14-5
Abstracts:
As one of the most important procedure in quantum key
distribution system, the error reconciliation algorithm has drew many
attentions. However, studies on the error reconciliation algorithm
mainly focuses on the reconciliation efficiency. Since the ultimate goal
of study on the error reconciliation is to find the most suitable
algorithm for a quantum key distribution system and maximize the
throughput rate of the whole system, the indicator of reconciliation
efficiency is not full-scale enough to evaluate an error reconciliation
algorithm. In this paper we propose a new evaluation scheme, including
four direct indicators and one composite indicator to solve the problem.
Following the new scheme, seven representative error reconciliation
algorithms are simulated and compared thoroughly, i.e. BBBSS, the
original Cascade and two improved Cascade algorithms, Winnow, and two
LDPC based algorithms. Our works are very beneficial to the evaluation,
comparison, selection and optimization of error reconciliation
algorithms for a practical quantum key distribution system.
Key words:
quantum cryptography; quantum key distribution; error reconciliation;
reconciliation efficiency |