Paper Info
Title
High Efficiency Continuous-Variable Quantum Key Distribution Based On Atsc 3.0 Ldpc Codes
Abstract
Due to the rapid development of quantum computing technology, encryption systems based on computational complexity are facing serious threats. Based on the fundamental theorem of quantum mechanics, continuous-variable quantum key distribution (CVQKD) has the property of physical absolute security and can effectively overcome the dependence of the current encryption system on the computational complexity. In this paper, we construct the spatially coupled (SC)-low-density parity-check (LDPC) codes and quasi-cyclic (QC)-LDPC codes by adopting the parity-check matrices of LDPC codes in the Advanced Television Systems Committee (ATSC) 3.0 standard as base matrices and introduce these codes for information reconciliation in the CVQKD system in order to improve the performance of reconciliation efficiency, and then make further improvements to final secret key rate and transmission distance. Simulation results show that the proposed LDPC codes can achieve reconciliation efficiency of higher than 0.96. Moreover, we can obtain a high final secret key rate and a long transmission distance through using our proposed LDPC codes for information reconciliation.
Year
DOI
Venue
2020
10.3390/e22101087
ENTROPY
Keywords
DocType
Volume
continuous-variable quantum key distribution, reconciliation efficiency, low-density parity-check codes
Journal
22
Issue
ISSN
Citations 
10
1099-4300
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Kun Zhang100.34
Xueqin Jiang213333.57
Yan, Feng3676.51
Runhe Qiu400.68
Enjian Bai5657.71