DocumentCode :
3770699
Title :
Finite-length EXIT analysis for protograph-coded two-dimensional ISI channels
Author :
Yi Fang;Guojun Han;Yong Liang Guan;Liwei Mu
Author_Institution :
School of Information Engineering, Guangdong University of Technology, Guangzhou, China, 510006
fYear :
2015
Firstpage :
1
Lastpage :
5
Abstract :
In this paper, we consider the protograph low-density parity-check (LDPC) codes in two-dimensional inter two-dimensional (2D) intersymbol interference (ISI) channels, which are widely used in modeling ultra-high-density magnetic recoding systems. In particular, we study the convergence and error performance of protograph codes over 2D-ISI channels. We modify the finite-length (FL) extrinsic information transfer (EXIT) algorithm for the sake of facilitating the convergence analysis of protograph codes. Through the FL-EXIT analyses and simulated results, we observe that the regular column-weight-3 (CW-3) code is superior to the protograph codes optimized for one-dimensional (1D) ISI channels, e.g., the 1D-ISI protograph code. Accordingly, the 1D-ISI protograph code may not be served as a good candidate for use in ultra-high-density data storage systems.
Keywords :
"Decoding","Detectors","Parity check codes","Magnetic recording","Convergence","Complexity theory","Electronic mail"
Publisher :
ieee
Conference_Titel :
Information, Communications and Signal Processing (ICICS), 2015 10th International Conference on
Type :
conf
DOI :
10.1109/ICICS.2015.7459821
Filename :
7459821
Link To Document :
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