Sparse graph codes for multilevel modulation with signal shaping
Harm S. Cronie · 2005
We present a method to combine error-correction coding and spectral-efficient modulation for transmission over the additive white Gaussian noise (AWGN) channel. The code employs signal shaping which can provide a so-called shaping gain. The code belongs to the family of sparse graph codes for which efficient decoding algorithms can be derived. Simulation results show that the performance of the code is quite good compared to other coded modulation schemes proposed in literature