A satellite-based quantum key distribution using decoy-state protocol | ||
| International Conference on Aerospace Sciences and Aviation Technology | ||
| Article 12, Volume 19, Issue 19, April 2021, Pages 1-10 PDF (1.11 M) | ||
| Document Type: Original Article | ||
| DOI: 10.1088/1757-899X/1172/1/012010 | ||
| Authors | ||
| A M Sofy1; M Y Shalaby2; H M Dahshan1 | ||
| 1Military Technical College, Department of Communication Engineering, Cairo, Egypt. | ||
| 2Ministry of Defence, Cairo, Egypt. | ||
| Abstract | ||
| An ideal QKD implementation that provides the promising unconditional security using single photon laser source is not practically easy, also sending these photons over a fiber channel affects the maximum distance of link up to few hundreds of kilometers because of the receiver’s detectors losses. Therefore, the achievement of a global quantum network is not easy, and the need to use LEO satellites [1,2] for establishing quantum links makes the job easier as quantum free space link provides much less losses to the link than fiber links. Nowadays, a quantum communication link can be established by satellites through free space. in this paper, we propose an implementation [3] of a satellite-based quantum key distribution using decoy-state protocol [4], we then compare this protocol with the BB-84 protocol [3] against security and the key length of the generated shared key. | ||
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