ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
25.63
Session ID : MMS2001-66
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Performance Improvement of Iterative Decoder for Perpendicular Magnetic Recording
Yoshihiro OKAMOTO, Yasuaki NAKAMURA, Hisashi OSAWA, Hidetoshi SAITO, Hiroaki MURAOKA, Yoshihisa NAKAMURA
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Keywords: turbo coding, iterative decoding, perpendisular magnetic recording, long sector
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Abstract
Performance improvement of an APP decoder in a serially concatenated turbo coding and decoding system is studied in perpendicular magnetic recording. An estimator of output levels from a PR channel in APP decoder is improved, and BER performance is obtained by computer simulation. The results show that the performance is improved. It is also clarified that the performance improvement is obtained by extension of coding and decoding block size.
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© 2001 The Institute of Image Information and Television Engineers
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