Title :
Joint equalization and decoding for nonlinear two-dimensional intersymbol interference channels
Author :
Singla, Naveen ; O´Sullivan, Joseph A.
Author_Institution :
Dept. of Electr. & Syst. Eng., Washington Univ., St. Louis, MO
Abstract :
An algorithm that performs joint equalization and decoding for channels with nonlinear two-dimensional intersymbol interference is presented. The algorithm performs sum-product message-passing on a factor graph that represents the underlying system. The two-dimensional optical storage (Two-DOS) technology is an example of a system with nonlinear two-dimensional intersymbol interference. Simulations for the nonlinear channel model of TwoDOS show significant improvement in performance over uncoded performance. Noise tolerance thresholds for the TwoDOS channel computed using density evolution are also presented
Keywords :
channel coding; decoding; equalisers; error correction codes; intersymbol interference; message passing; optical storage; density evolution; joint decoding; joint equalization; noise tolerance; nonlinear two-dimensional intersymbol interference channels; sum-product message-passing; two-dimensional optical storage; Disk recording; Holographic optical components; Holography; Intersymbol interference; Isolation technology; Maximum likelihood decoding; Nonlinear optics; Optical filters; Optical noise; Optical recording;
Conference_Titel :
Information Theory, 2005. ISIT 2005. Proceedings. International Symposium on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-9151-9
DOI :
10.1109/ISIT.2005.1523563
