List-Encoding CCDM: A Nonlinearity-Tolerant Shaper Aided by Energy Dispersion Index
| العنوان: | List-Encoding CCDM: A Nonlinearity-Tolerant Shaper Aided by Energy Dispersion Index |
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| المؤلفون: | Alex Alvarado, Gabriele Liga, Yunus Can Gultekin, Alireza Sheikh, Frans M. J. Willems, Kaiquan Wu |
| المساهمون: | Information and Communication Theory Lab, Signal Processing Systems, EAISI Foundational, Center for Wireless Technology Eindhoven |
| المصدر: | Journal of Lightwave Technology, 40(4), 1064-1071. IEEE/LEOS |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Signal Processing (eess.SP), probabilistic amplitude shaping, Computer science, Probabilistic logic, 02 engineering and technology, Code rate, Interference (wave propagation), Topology, Atomic and Molecular Physics, and Optics, fiber nonlinearities, 020210 optoelectronics & photonics, Amplitude, Transmission (telecommunications), Encoding (memory), Metric (mathematics), FOS: Electrical engineering, electronic engineering, information engineering, 0202 electrical engineering, electronic engineering, information engineering, Electrical Engineering and Systems Science - Signal Processing, Constant-composition distribution matching, Quadrature amplitude modulation |
| الوصف: | Recently, a metric called energy dispersion index (EDI) was proposed to qualitatively indicate the nonlinear interference (NLI) induced by correlated symbols during optical transmission. In this paper, we propose a new shaper architecture to decrease the EDI of transmitted symbols and thus, increase the signal-to-noise ratio (SNR). We call this shaper the list-encoding constant-composition distribution matcher (L-CCDM). L-CCDM consists of an additional EDI selecting module, which is compatible with standard probabilistic amplitude shaping (PAS) architecture. Numerical results obtained from a multi-span multi-channel system show that when compared to standard CCDM with 256-ary quadrature amplitude modulation (256QAM), the proposed architecture offers an effective SNR gain of 0.35 dB, an achievable information rate gain of 0.22 bit/4D-symbol, or equivalently an 8% reach extension. |
| وصف الملف: | application/pdf |
| تدمد: | 1558-2213 0733-8724 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81f981d0523134415f934ca8c4a38b6cTest https://doi.org/10.1109/jlt.2021.3125783Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....81f981d0523134415f934ca8c4a38b6c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15582213 07338724 |
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