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Computer Science > Information Theory

arXiv:2308.00407 (cs)
[Submitted on 1 Aug 2023]

Title:Coded Modulation Schemes for Voronoi Constellations

Authors:S. Li, A. Mirani, M. Karlsson, E. Agrell
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Abstract:Multidimensional Voronoi constellations (VCs) are shown to be more power-efficient than quadrature amplitude modulation (QAM) formats given the same uncoded bit error rate, and also have higher achievable information rates. However, a coded modulation scheme to sustain these gains after forward error correction (FEC) coding is still lacking. This paper designs coded modulation schemes with soft-decision FEC codes for VCs, including bit-interleaved coded modulation (BICM) and multilevel coded modulation (MLCM), together with three bit-to-integer mapping algorithms and log-likelihood ratio calculation algorithms. Simulation results show that VCs can achieve up to 1.84 dB signal-to-noise ratio (SNR) gains over QAM with BICM, and up to 0.99 dB SNR gains over QAM with MLCM for the additive white Gaussian noise channel, with a surprisingly low complexity.
Comments: 13 pages, 8 fugyres
Subjects: Information Theory (cs.IT)
Cite as: arXiv:2308.00407 [cs.IT]
  (or arXiv:2308.00407v1 [cs.IT] for this version)
  https://doi.org/10.48550/arXiv.2308.00407

Submission history

From: Shen Li [view email]
[v1] Tue, 1 Aug 2023 09:37:01 UTC (1,386 KB)
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