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Secret key rate of the proposed and conventional methods for N = 12 and M = 1 at different fiber lengths.
| Fiber length (km) | 40 | 45 | 50 | 55 | 60 | 65 |
|---|---|---|---|---|---|---|
| Rpr (bit/s) | 1.49E7 | 1.02E7 | 6.29E6 | 2.93E6 | 4.5E4 | 0 |
| Rco (bit/s) | 1.41E7 | 9.33E6 | 5.27E6 | 1.79E6 | 0 | 0 |
| RE (%) | 5.5 | 9.69 | 19.35 | 63 | ∞ | 0 |
