Yazar
Raouf, Amir Hossein Fahim, Safari, M., Uysal, Murat
Basım Tarihi
2020
Basım Yeri
-
The Optical Society
Tür
Süreli Yayın
Dil
İngilizce
Dijital
Evet
Yazma
Hayır
Kütüphane
Özyeğin Üniversitesi
Demirbaş Numarası
0740-3224
Kayıt Numarası
09fa50a2-9865-408d-ac5c-55051f3e178c
Lokasyon
Electrical & Electronics Engineering
Tarih
2020
Notlar
TÜBİTAK
Örnek Metin
The current literature on quantum key distribution is limited mainly to transmissions over fiber optic, atmospheric, or satellite links and is not directly applicable to underwater environments with different channel characteristics. In this paper, we analyze the quantum bit error rate (QBER) and secret key rate (SKR) performance of the well-known BB84 protocol in underwater channels. As a path loss model, we consider a modified version of the Beer-Lambert formula, which takes into account the effect of scattering. We derive a closed-form expression for the wave structure function to determine the average power transfer over a turbulent underwater path and use this to obtain an upper bound on QBER as well as a lower bound on SKR. Based on the derived bounds, we present the performance of the BB84 protocol in different water types including dear, coastal, and turbid and under different atmospheric conditions such as clear, hazy, and overcast. We further investigate the effect of system parameters such as aperture size and detector field of view on QBER and SKR performance metrics.
DOI
10.1364/JOSAB.376267
Cilt
37
