Hardware-efficient Precise and Flexible Soft-demapping for Multi-Dimensional Complementary APSK Signals

Conference: ECOC 2016 - 42nd European Conference on Optical Communication
09/18/2016 - 09/22/2016 at Düsseldorf, Deutschland

Proceedings: ECOC 2016

Pages: 3Language: englishTyp: PDF

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Yoshida, Tsuyoshi; Matsuda, Keisuke; Miura, Hiroshi; Dohi, Keisuke; Sugihara, Takashi (Information Technology R&D Centre, Mitsubishi Electric Corporation, 5-1-1 Ofuna, Kamakura, Kanagawa, 247-8501, Japan)
Kojima, Keisuke; Pajovic, Milutin; Koike-Akino, Toshiaki; Millar, David S.; Parsons, Kieran (Mitsubishi Electric Research Laboratories (MERL), 201 Broadway, Cambridge, MA, 02139, USA)

We propose the combination of log-likelihood ratio (LLR) table and min-sum algorithm-based LLR updates for simple, precise, and flexible soft-demapping of multi-dimensional complementary APSK signals. Transmission experiment verifies the demapping loss is limited to 0.15 dB in Q-factor.