Adaptive low density parity check encoder for a complete free space optics/continuous variable-quantum key distribution system using commercially available off-the-shelf devices for variable throughput network considering dynamical atmospheric turbulence levels

Abstract In this paper, an adaptive low density parity check (LDPC). encoder for complete Free Space Optics/Continuous Variable-Quantum Key Distribution (FSO/CV-QKD) system using a Commercially available Off-The-Shelf (COTS) device for emulated dynamical atmospheric turbulence levels is presented. The experimental and emulation results show the maximum and minimal final secret key rates of ≈ 105 Kbps and ≈ 10 Kbps, respectively, for minimal and maximal throughput in a commercial network, 30 Mbps and 90 Mbps, respectively. Our proposal presents an adequate performance for weak and moderate atmospheric turbulence levels and a suitable option for improving the use of Quantum Key Distribution (QKD) systems.

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Bibliographic Details
Main Authors: López-Leyva,J.A, Arvizu-Mondragon,A., Santos-Aguilar,J., Ramos-Garcia,R., Talamantes-Álvarez,A.
Format: Digital revista
Language:English
Published: Sociedad Mexicana de Física 2018
Online Access:http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0035-001X2018000500478
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