Title :
Rate-adaptive LDPC-coded multilevel modulation with coherent detection for high-speed optical transmission
Author :
Djordjevic, Ivan B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
We propose an adaptive quasi-cyclic LDPC-coded multilevel modulation scheme, suitable for use in future 100 Gb/s and 1 Tb/s Ethernet technologies. In proposed scheme, the codeword length and column-weight of a parity-check matrix H are kept constant while the code-rate adaptation is performed by varying the row-weight and permutation-block size of H.
Keywords :
adaptive codes; cyclic codes; local area networks; matrix algebra; modulation; optical communication; parity check codes; Ethernet technology; adaptive quasicyclic LDPC-coded multilevel modulation scheme; code-rate adaptation; codeword length; coherent detection; high-speed optical transmission; parity-check matrix; rate-adaptive LDPC-coded multilevel modulation; Decoding; Delay; Error correction codes; High speed optical techniques; Optical detectors; Optical fiber networks; Optical modulation; Parity check codes; Protection; WDM networks;
Conference_Titel :
Summer Topical Meeting, 2009. LEOSST '09. IEEE/LEOS
Conference_Location :
Newport Beach, CA
Print_ISBN :
978-1-4244-3913-3
Electronic_ISBN :
1099-4742
DOI :
10.1109/LEOSST.2009.5226209
