Title :
Polarization-multiplexed nonbinary LDPC-coded modulation with optimal signal constellations
Author :
Arabaci, Murat ; Djordjevic, Ivan B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
We propose using nonbinary LDPC-coded modulation with optimal constellations obtained via iterative polar quantization (IPQ). The proposed scheme significantly outperforms its prior-art bit-interleaved LDPC-coded modulation counterpart, e.g., by 2.78 dB for the 128-point IPQ constellation.
Keywords :
iterative methods; multiplexing; optical fibre communication; optical fibre polarisation; optical modulation; parity check codes; quantisation (signal); IPQ constellation; iterative polar quantization; nonbinary LDPC-coded modulation; optimal signal constellations; polarization multiplexing; Bit rate; Constellation diagram; Decoding; Gaussian distribution; Parity check codes; Quantization; forward error correction; iterative polar quantization; low-density parity-check codes;
Conference_Titel :
Photonics Conference (PHO), 2011 IEEE
Conference_Location :
Arlington, VA
Print_ISBN :
978-1-4244-8940-4
DOI :
10.1109/PHO.2011.6110475
