@inproceedings{
  author = {N. Buhr and T. Monsees and D. W\"{u}bben and A. Dekorsy},
  year = {2026},
  month = {Jun},
  title = {Finite-Alphabet Decoding of LDPC Codes for OFDM-Systems with Higher-Order Modulation},
  address={Málaga, Spain},
  abstract={Mutual-Information Maximizing Finite-Alphabet (MIM-FA) decoders have been introduced as an approach to reduce the decoding complexity of Low Density Parity Check codes while maintaining performance close to that of Floating-Point (FP) Belief-Propagation (BP) decoders. The applicability of these low-complexity decoders to practically relevant systems with higher-order modulated signals transmitted over multicarrier systems like Orthogonal Frequency Division Multiplexing (OFDM) is crucial for their application in 5G and 6G systems. We propose a pragmatic approach for the design of a receiver structure for a MIM-FA decoders that can deal with the varying reliabilities of OFDM subcarriers and being agnostic to the modulation scheme. The simulation results indicate that the proposed scheme in combination with a 3-bit MIM-FA decoder exploits the full frequency diversity and performs close to FP-BP decoder.},
  booktitle={2026 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit)}
}