Paper Info
Title
Information reconciliation for QKD with rate-compatible non-binary LDPC codes
Abstract
We study the information reconciliation (IR) scheme for quantum key distribution (QKD) protocols. The IR for the QKD can be seen as the asymmetric Slepian-Wolf problem, which low-density parity-check (LDPC) codes can solve with efficient algorithms, i.e., the belief propagation. However, the LDPC codes are needed to be chosen properly from a collection of codes optimized for multiple key rates, which leads to complex decoder devices and performance degradation for unoptimized key rates. Therefore, it is desired that establish an IR scheme with a single LDPC code which supports multiple rates. To this end, in this paper, we propose an IR scheme with a rate-compatible non-binary LDPC code. Numerical results show the proposed scheme achieves IR efficiency comparable to the best know conventional IR scheme with lower decoding error rates.
Year
DOI
Venue
2010
10.1109/ISITA.2010.5649550
ISITA
Keywords
Field
DocType
qkd,rate-compatible nonbinary ldpc codes,quantum key distribution,quantum key distribution protocols,low-density parity-check code,quantum cryptography,asymmetric slepian-wolf problem,cryptographic protocols,low-density parity-check codes,iterative decoding,parity check codes,information reconciliation,complex decoder devices,protocols,belief propagation,ldpc code,low density parity check,channel coding,error rate,decoding,code optimization,security
Quantum key distribution,Discrete mathematics,Cryptographic protocol,Compatibility (mechanics),Low-density parity-check code,Computer science,Theoretical computer science,Quantum cryptography,Decoding methods,Binary number,Belief propagation
Conference
ISBN
Citations 
PageRank 
978-1-4244-6017-5
6
0.55
References 
Authors
11
3
Name
Order
Citations
PageRank
K. Kasai131933.57
Ryutaroh Matsumoto229135.73
Kohichi Sakaniwa333047.69