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On the Performance of Quantum Key Distribution FSO Systems Under a Generalized Pointing Error Model
IEEE Communications Letters
In this letter, the performance of a quantum key distribution (QKD) free-space optical (FSO) system is analyzed while taking a generalized pointing error model into account. More specifically, closed-form expressions for the average received powers at both the legitimate receiver and eavesdropper are derived. In addition, their corresponding asymptotic results valid in the high telescope gain regime are also presented. To capture the secure performance, we also investigate the ratio of receiveddoi:10.1109/lcomm.2019.2929037 fatcat:cffijqtnivenfjbljp6x5g6ble