Title :
Comparison of terminated and tailbiting spatially coupled LDPC codes with optimized bit mapping for PM-64-QAM
Author :
Hager, Christian ; Amat, Alexandre Graelli ; Brannstrom, Fredrik ; Alvarado, Alex ; Agrell, Erik
Author_Institution :
Dept. of Signals & Syst., Chalmers Univ., Gothenburg, Sweden
Abstract :
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.
Keywords :
forward error correction; multiplexing; optical fibre polarisation; optical modulation; parity check codes; quadrature amplitude modulation; FEC overhead; PM-64-QAM; SC-LDPC codes; coded bits allocation; low-density parity-check codes; modulation bits allocation; optimized bit mapping; polarization-multiplexed fiber-optical transmission system; tailbiting SC-LDPC codes; tailbiting spatially coupled LDPC codes; terminated spatially coupled LDPC codes; AWGN channels; Bit error rate; Decoding; Forward error correction; Modulation; Parity check codes; Resource management;
Conference_Titel :
Optical Communication (ECOC), 2014 European Conference on
Conference_Location :
Cannes
DOI :
10.1109/ECOC.2014.6964047
