Investigation of punctured LDPC codes and time-diversity on free-space optical links

@article{Czaputa2011InvestigationOP,
  title={Investigation of punctured LDPC codes and time-diversity on free-space optical links},
  author={Martin Czaputa and Tomaz Javornik and Erich Leitgeb and Gorazd Kandus and Zabih Ghassemlooy},
  journal={Proceedings of the 11th International Conference on Telecommunications},
  year={2011},
  pages={359-362}
}
In this paper, we analyze the behavior of DVB-S2 un-punctured/punctured low-density parity-check (LDPC) coded on-off-keying (OOK) under atmospheric turbulence conditions by utilizing time diversity. A performance characterization between these schemes is evaluated, where punctured LDPC code provides a penalty of around 0.1 to 0.2 dB against unpunctured LDPC codes but still provides a coding gain of several dB against uncoded OOK. The combination of channel coding and a bit interleaver results… CONTINUE READING

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