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- Yoshida, Tsuyoshi, 1982, et al.
(författare)
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Low-Complexity Symbol Demapping for Multidimensional Multilevel Coded Modulation
- 2022
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Ingår i: European Conference on Optical Communication, ECOC. ; , s. 1-4
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Konferensbidrag (refereegranskat)abstract
- Symbol demapping for multidimensional multilevel coding (MLC) is proposed, together with a novel nonsystematic encoding method, applicable to any dimensionality. The complexity of soft-decision forward error correction and symbol demapping, both normally problematic in multidimensional MLC, is reduced, which enables high-throughput implementation.
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2. |
- Yoshida, Tsuyoshi, 1982, et al.
(författare)
-
Nonlinear Fiber Transmission of Compressed Shaping Signals
- 2022
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Ingår i: 2022 European Conference on Optical Communication, ECOC 2022. - 9781957171159 ; , s. 1-4
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Konferensbidrag (refereegranskat)abstract
- In nonlinear transmission of compressed shaping signals, the optimum launch power decreases as source entropy decreases, but the maximum Q performance based on soft information increases for either bit-interleaved coded or multilevel coded modulation. The excess degradation is mostly recovered by high-performance multi-channel nonlinearity compensation.
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