Abstract
To overcome the low reconciliation efficiency problem of Gaussian modulation (GM)-based-continuous variable (CV)-quantum key distribution (QKD), in this paper, we propose to use discretized GM (DGM)-based-CV-QKD. The proposed CV-QKD scheme has complexity and reconciliation efficiency similar to that of discrete modulation (DM)-based-CV-QKD and at the same time solves for the problem of the nonexistence of strict security proofs for the DM-CV-QKD under the collective attacks. We demonstrate that the 32-points-based DGM CV-QKD can closely approach the theoretical SKR-limit in medium and high channel losses regimes. On the other hand, the 64-points-based DGM CV-QKD scheme closely approaches the SKR-limit for all channel losses.
| Original language | English (US) |
|---|---|
| Article number | 8717649 |
| Pages (from-to) | 65342-65346 |
| Number of pages | 5 |
| Journal | IEEE Access |
| Volume | 7 |
| DOIs | |
| State | Published - 2019 |
Keywords
- Gaussian modulation
- Quantum communication
- continuous variable (CV)-QKD
- discrete modulation
- information reconciliation
- quantum key distribution (QKD)
- secret-key rate (SKR)
ASJC Scopus subject areas
- Computer Science(all)
- Materials Science(all)
- Engineering(all)
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Cite this
Djordjevic, I. B. (2019). On the Discretized Gaussian Modulation (DGM)- Based Continuous Variable-QKD. IEEE Access, 7, 65342-65346. [8717649]. https://doi.org/10.1109/ACCESS.2019.2917587