Title :
Mitigation of linear and nonlinear impairments in high-speed optical networks by using LDPC-coded turbo equalization
Author :
Djordjevic, Ivan B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ
Abstract :
We present a nonlinear ISI cancellation scheme based on LDPC-coded turbo equalization. This scheme is suitable for simultaneous suppression of intra-channel nonlinearities, chromatic dispersion compensation, and PMD compensation. LDPC coding is based on large girth block-circulant codes, and maximum a posteriori probability equalizer is based on Bahl-Cocke-Jelinek-Raviv (BJCR) algorithm.
Keywords :
block codes; equalisers; interference suppression; intersymbol interference; maximum likelihood estimation; optical fibre dispersion; optical fibre networks; parity check codes; turbo codes; Bahl-Cocke-Jelinek-Raviv algorithm; LDPC-coded turbo equalization; chromatic dispersion compensation; high-speed optical networks; intrachannel nonlinearities; large girth block-circulant codes; linear mitigation; maximum a posteriori probability equalizer; nonlinear ISI cancellation scheme; nonlinear impairments mitigation; simultaneous suppression; Chromatic dispersion; Equalizers; Intersymbol interference; Iterative decoding; Optical fiber communication; Optical fiber devices; Optical fiber networks; Parity check codes; Signal processing algorithms; Tellurium;
Conference_Titel :
IEEE/LEOS Summer Topical Meetings, 2008 Digest of the
Conference_Location :
Acapulco
Print_ISBN :
978-1-4244-1925-8
Electronic_ISBN :
1099-4742
DOI :
10.1109/LEOSST.2008.4590536
