Title :
Next Generation FEC for High-Capacity Communication in Optical Transport Networks
Author :
Djordjevic, Ivan B. ; Arabaci, Murat ; Minkov, Lyubomir L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
Codes on graphs of interest for next generation forward error correction (FEC) in high-speed optical networks, namely turbo codes and low-density parity-check (LDPC) codes, are described in this invited paper. We describe both binary and nonbinary LDPC codes, their design, and decoding. We also discuss an FPGA implementation of decoders for binary LDPC codes. We then explain how to combine multilevel modulation and channel coding optimally by using coded modulation. Also, we describe an LDPC-coded turbo-equalizer as a candidate for dealing simultaneously with fiber nonlinearities, PMD, and residual chromatic dispersion.
Keywords :
binary codes; channel coding; decoding; field programmable gate arrays; forward error correction; graph theory; optical fibre networks; parity check codes; FPGA; LDPC code; PMD; channel coding; fiber nonlinearities; forward error correction; high-capacity communication; high-speed optical network; low-density parity-check code; multilevel modulation; optical transport network; residual chromatic dispersion; turbo code; turbo-equalizer; Coded modulation; codes on graphs; fiber-optics communications; low-density parity-check (LDPC) codes; turbo equalization;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2009.2022044
