Non-Linear Rate Compatible Modulation : Invited Presentation

We propose a novel coding scheme that generalizes Rate Compatible Modulation (RCM). The idea is to maintain the graphical structure in RCM, but substituting the linear combinations that generate the random projections by non-linear functions directly mapping bits into constellation symbols. This is done in a computationally efficient and straightforward manner. By eliminating the linearity conditions we are able to improve the RCM performance, while we still benefit from the simple graphical structure.