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New estimates of single photon parameters for satellite-based QKD

Ali, Sellami and Wahiddin, Mohamed Ridza (2009) New estimates of single photon parameters for satellite-based QKD. Optics Communications, 282 (15). pp. 3185-3189. ISSN 0030-4018

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Abstract

A new decoy state method has been presented to tighten the lower bound of the key generation rate for BB84 using one decoy state and one signal state. It can give us different lower and upper bounds of the fraction of single-photon counts and single-photon QBER, respectively, for one decoy state protocol. We have also analyzed the feasibility of performing quantum key distribution (QKD), with different exiting protocols, in earth-satellite and intersatellite links. Our simulation shows the choice of intensity of signal state and the effect of choosing the number of decoy states on key generation rate. The final key rate over transmission distance has been simulated, which shows that security proofs give a zero key generation rate at long distances (larger than 16,000 km). It has been shown that the practical QKD can be established with low earth orbit and medium earth orbit satellites.

Item Type: Article (Journal)
Additional Information: 6576/3550
Uncontrolled Keywords: Optical communication ; Quantum cryptography ; Quantum key distribution ; Decoy state protocol
Subjects: T Technology > T Technology (General) > T10.5 Communication of technical information
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Science
Kulliyyah of Information and Communication Technology > Department of Computer Science
Kulliyyah of Information and Communication Technology > Department of Computer Science
Depositing User: Dr Ali Sellami
Date Deposited: 28 Sep 2011 08:57
Last Modified: 13 Dec 2011 15:11
URI: http://irep.iium.edu.my/id/eprint/3550

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