Work

Coded Modulation Schemes for Voronoi Constellations

Year: 2025

Type: article

Abstract: Multidimensional Voronoi constellations (VCs) have been 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 that sustains 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 at the bit error rate of$1.81\times 10^{-3}$, with a low decoding complexity.

Source: IEEE Transactions on Communications

DOI: 10.1109/tcomm.2025.3554118

Authors: Shen Li, Ali Mirani, Magnus Karlsson, Erik Agrell

Institution: Chalmers University of Technology

Language: English

Topic: Advanced Wireless Communication Techniques

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,645

Funders: Knut och Alice Wallenbergs Stiftelse, Vetenskapsrådet