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Chunpo Pan; Kschischang, Frank R.
Journal of lightwave technology, 09/2016, Letnik: 34, Številka: 18Journal Article
This work proposes a probabilistic shaping scheme for optical WDM systems, where nonlinear interference noise depends on the input optical signal power distribution. With 16-QAM, a white Gaussian channel analysis shows that the shaped constellation is able to achieve a reach improvement of up to 7%, while split-step Fourier method simulations suggest that even higher gains are possible in practice. An example system is developed for a transmission distance around 3280 km. A constellation mapping and a low-density parity-check code are developed for this regime to show a reach improvement of 7.1%. These shaping schemes can also be extended to 64-QAM, where a reach improvement of over 10% is expected.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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