Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Joint Probability Density Functions for Direct-Detection Optical Receivers

  • Lee, Jae Seung (Department of Electronic Engineering, Kwangwoon University)
  • Received : 2014.02.11
  • Accepted : 2014.03.21
  • Published : 2014.04.25
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Abstract

We derive joint probability density functions (JPDFs) for two adjacent data from direct-detection optical receivers in dense wavelength-division multiplexing systems. We show that the decision using two data per bit can increase the receiver sensitivity compared with the conventional decision. Our JPDFs can be used for software-defined optical receivers enhancing the receiver sensitivities for intensity-modulated channels.

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References

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