Spatially coupled LDLC: New constructions

Low Density Lattice Code (LDLC) uses a lattice with a sparse inverse matrix, which allows a linear complexity decoding. Spatially Coupled Low Density Lattice Code (SC-LDLC) is built by coupling several LDLCs which leads to a smaller Symbol Error Rate (SER) than the LDLC scheme for every tested block length n. In this paper, new constructions of the spatially coupled low density lattice codes are introduced, with benefits over the existing methods.