Non-Binary Low-Density Parity-Check coded Cyclic Code-Shift Keying

Classically, the association of high-order modulation techniques to binary channel coding suffers from significant information loss due to the computation of the channel probabilities at the bit level. In this paper, we investigate the association of Non-Binary Low-Density Parity-Check codes (NB-LDPC) and Cyclic Code-Shift Keying (CCSK) which aims at preventing the information loss by computing the probabilities at the symbol level. Simulation results over Gaussian and Rayleigh channels demonstrate that this association leads to significant performance gains (≈ 2.6dB over the Gaussian channel and ≈ 3.5dB over the Rayleigh channel).