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Multilevel Nonbinary LDPC-Coded Modulation for High-Speed Optical Transmissions

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Abstract

Multilevel nonbinary LDPC-coded modulation has been proposed to reduce decoding complexity while maintaining the large-coding-gain performance desired for high-speed optical transmissions. Simulation results show the proposed scheme outperforms bit-interleaved LDPC-coded modulation by 0.65 dB.

© 2014 Optical Society of America

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