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arXiv · 1310.4149

Achievable Rates for Four-Dimensional Coded Modulation with a Bit-Wise Receiver

Alex Alvarado·Erik Agrell
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Abstract

We study achievable rates for four-dimensional (4D) constellations for spectrally efficient optical systems based on a (suboptimal) bit-wise receiver. We show that PM-QPSK outperforms the best 4D constellation designed for uncoded transmission by approximately 1 dB. Numerical results using LDPC codes validate the analysis.

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Alex Alvarado, Erik Agrell. 2013-10-15. Achievable Rates for Four-Dimensional Coded Modulation with a Bit-Wise Receiver. https://doi.org/10.1364/ofc.2014.m2c.1

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