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dc.contributor.authorZhao, Hui
dc.contributor.authorAlouini, Mohamed-Slim
dc.identifier.citationZhao, H., & Alouini, M.-S. (2020). On the Transmission Probabilities in Quantum Key Distribution Systems over FSO Links. IEEE Transactions on Communications, 1–1. doi:10.1109/tcomm.2020.3030250
dc.description.abstractIn this paper, we investigate the transmission probabilities in three cases (depending only on the legitimate receiver, depending only the eavesdropper, and depending on both legitimate receiver and eavesdropper) in quantum key distribution (QKD) systems over free-space optical links. To be more realistic, we consider a generalized pointing error scenario, where the azimuth and elevation pointing error angles caused by stochastic jitters and vibrations in the legitimate receiver platform are independently distributed according to a non-identical normal distribution. Taking these assumptions into account, we derive approximate expressions of transmission probabilities by using the Gaussian quadrature method. To simplify the expressions and get some physical insights, some asymptotic analysis on the transmission probabilities is presented based on asymptotic expression for the generalized Marcum Q-function when the telescope gain at the legitimate receiver approaches to infinity. Moreover, from the asymptotic expression for the generalized Marcum Q-function, the asymptotic outage probability over Beckmann fading channels (a general channel model including Rayleigh, Rice, and Hoyt fading channels) can be also easily derived when the average signal-to-noise ratio is sufficiently large, which shows the diversity order and array gain.
dc.description.sponsorshipThis work was funded by the office of sponsored research (OSR) at KAUST. The work of H. Zhao was done while he was studying at KAUST.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.rightsArchived with thanks to IEEE Transactions on Communications
dc.subjectBeckmann distribution
dc.subjectfree-space optics
dc.subjectgeneralized pointing errors
dc.subjectquantum key distribution
dc.subjectand transmission probability
dc.titleOn the Transmission Probabilities in Quantum Key Distribution Systems over FSO Links
dc.contributor.departmentCommunication Theory Lab
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalIEEE Transactions on Communications
dc.contributor.institutionCommunication Systems Department, EURECOM, Sophia Antipolis 06410, France
kaust.personZhao, Hui
kaust.personAlouini, Mohamed-Slim

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