Serially concatenated coding for PR system with LDPC and PC codes

Author

Saito, H. ; Okamoto, Y. ; Osawa, H.

Author_Institution

Fac. of Eng., Ehime Univ., Japan

fYear

2002

Abstract

Summary form only given In this work, the coded partial response (PR) system based on serially concatenated error control codes is described. The component codes of the concatenated codes are a low density parity check (LDPC) code and a punctured convolutional (PC) code. In our system, the LDPC code is used as an inner code and is an important random code which can approach Shannon´s capacity limit. A practical decoding method of the LDPC code is known as the sum-product decoding algorithm or belief propagation. Furthermore, the PC code is used for an outer code and can enhance the minimum squared Euclidean distance for the coded PR system. The sequence of the PC code has a single parity check capability for the concatenated coding.

Keywords

concatenated codes; convolutional codes; decoding; digital magnetic recording; error correction codes; error statistics; parity check codes; partial response channels; BER performance; belief propagation decoding method; bit error rate performance; coded PR system; coded partial response system; inner code; longitudinal magnetic recording; low density parity check code; outer code; punctured convolutional code; random code; serially concatenated error control codes; single parity check capability; sum-product decoding algorithm; Bit error rate; Code standards; Decoding; Optical wavelength conversion; Parity check codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International

Conference_Location

Amsterdam, The Netherlands

Print_ISBN

0-7803-7365-0

Type

conf

DOI

10.1109/INTMAG.2002.1000870

Filename

1000870