Title :
Nonbinary Quasi-Cyclic LDPC-Based Coded Modulation for Beyond 100-Gb/s Transmission
Author :
Arabaci, Murat ; Djordjevic, Ivan B. ; Saunders, Ross ; Marcoccia, Roberto M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
fDate :
3/15/2010 12:00:00 AM
Abstract :
We propose using coded modulation based on nonbinary quasi-cyclic low-density parity-check (LDPC) codes for beyond 100-Gb/s optical transmission. The proposed scheme not only lowers the latency in the system but also offers much higher coding gains than its binary counterpart based on bit-interleaved coded modulation (BICM). We show that using component LDPC codes over high order finite fields and matching bandwidth-efficient modulations, our scheme can provide around 1-dB coding gain improvement at the bit-error ratio of 10-6 compared to a corresponding BICM-based scheme.
Keywords :
binary codes; cyclic codes; light transmission; optical fibre communication; parity check codes; bit rate 100 Gbit/s; bit-interleaved coded modulation; nonbinary quasi-cyclic LDPC-based coded modulation; nonbinary quasi-cyclic low-density parity-check codes; optical transmission; Forward-error correction; low-density parity-check (LDPC) codes; optical communication; quasi-cyclic codes;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2040981
