Differential-Quadrature-Phase-Shift (DQPS) Quantum Key Distribution

Inoue, Kyo; Iwai, Y.; Kukita, Tatsuya; Honjo, Toshimori

doi:10.1364/iqec.2009.itui4

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Numerous enhancements have been discussed [15] on the original DPS protocol to improve the transmission range and security against sophisticated eavesdropping attacks. These advancement include variable delay scheme [17] (RR DPS-QKD), implementation of decoy states [18], a novel four-level scheme (DQPS QKD) [19], and entanglement based scheme. Extensive security analysis of these extended schemes is yet an open problem.…”

Section: Bob Performs the Error Estimation Procedures Withmentioning

confidence: 99%

A MATLAB based modeling and simulation package for DPS-QKD

Sethia,

Banerjee

2021

Preprint

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Quantum key distribution (QKD) is an ingenious technology utilizing quantum information science for provable secure communication. However, owing to the technological limitations and device non-idealities it is important to analyze the system performance critically and carefully define the implementation security. With an acceleration in the commercial adoption of QKD, a simulation toolkit is requisite to evaluate the functional architecture of QKD protocols. We present a simulation framework to model optical and electrical components for implementing a QKD protocol. The present toolkit aims to model and simulate the optical path of the DPS-QKD protocol with its imperfections and eventually characterize the optical path. The detailed device-level modeling and analysis capabilities of the present toolkit based on Simulink and MATLAB have the potential to provide universal toolkit for practical design and implementation of generalized QKD protocols compared to earlier works. We report a novel work on the implementation of a QKD protocol on Simulink and MATLAB platform. Further, the absence of any modeling framework for DPS QKD and its simplistic optical schematic made it an obvious choice for the authors. We are hopeful that this work will pave way for simulating other QKD protocols from the DPR family.

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