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

Information Theory 2024-01-25 v1 math.IT Optics
Authors: 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.

Keywords

coded modulation wireless communication

Cite

@article{arxiv.1310.4149,
  title  = {Achievable Rates for Four-Dimensional Coded Modulation with a Bit-Wise Receiver},
  author = {Alex Alvarado and Erik Agrell},
  journal= {arXiv preprint arXiv:1310.4149},
  year   = {2024}
}

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