Iterative decoding and equalization for 2-D recording channels

Summary form only given. As conventional magnetic recording challenges physical limits, we are motivated to consider 2-dimensional (2-D) data storage techniques. Further motivation is provided by the fact that data in 2-D recording may be arranged in bigger sectors than in 1-D and error correcting c...

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Bibliographic Details
Main Authors: Singla, N., O'Sullivan, J.A., Indeck, R.S., Yunxiang Wu
Format: Conference Proceeding
Language:English
Subjects:
Concatenated codes
Error correction codes
Intersymbol interference
Iterative algorithms
Iterative decoding
Iterative methods
Magnetic recording
Parity check codes
Reed-Solomon codes
Wiener filter
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Summary:Summary form only given. As conventional magnetic recording challenges physical limits, we are motivated to consider 2-dimensional (2-D) data storage techniques. Further motivation is provided by the fact that data in 2-D recording may be arranged in bigger sectors than in 1-D and error correcting codes (ECC) such as low density parity check codes (LDPCC) get arbitrarily close to capacity for large enough block lengths. In this paper we consider the use of LDPCC as an ECC in conjunction with equalization methods, iterative and otherwise, for a 2-D recording medium with 2-D ISI. Equalization methods for 2-D recording are discussed as is iterative detection.
DOI:10.1109/INTMAG.2002.1001131