Performance analysis of MDI-QKD based on MCS source using global estimation

Abstract

Abstract: To improve the system performance of Measurement-Device-Independent Quantum Key Distribution (MDI-QKD), a MDI-QKD system based on Modified Coherent Source (MCS) was proposed which can optimize the photon number distribution. Then the global estimation method was introduced to simulate the relationship between key generation rate and total transmission distance which guarantees the full utilization of photon information. Comparing to the result of Heralded Single Photon Source (HSPS) scenario, the transmission loss limit is enhanced by 9%, which shows the method can improve the system performance efficiently and is helpful in deriving more accurate key rate.

Key words: modified coherent source

CLC Number:

TN918

References

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