Comparison of terminated and tailbiting spatially coupled LDPC codes with optimized bit mapping for PM-64-QAM
Christian H. Hager, Alexandre Graell i Amat, Fredrik Brännström, Alex Alvarado, Erik Agrell · 2014
We optimize the allocation of coded bits to modulation bits for spatially coupled low-density parity-check (SC-LDPC) codes and PM-64-QAM. Tailbiting SC-LDPC codes are shown to offer a similar gap to capacity as their terminated counterparts, at a lower FEC overhead.