A Study of LDPC Coding and Iterative Decoding System in Magnetic Recording System Using Bit-Patterned Medium With Write Error

被引：7

作者：

Nakamura, Yasuaki ^{[1
]}

Okamoto, Yoshihiro ^{[1
]}

Osawa, Hisashi ^{[2
]}

Aoi, Hajime ^{[3
]}

Muraoka, Hiroaki ^{[3
]}

机构：

[1] Ehime Univ, Grad Sch Sci & Engn, Matsuyama, Ehime 7908577, Japan

[2] Ehime Univ, Inst Collaborat Relat, Matsuyama, Ehime 7908577, Japan

[3] Tohoku Univ, RIEC, Sendai, Miyagi 9808577, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 10期

基金：

日本学术振兴会;

关键词：

Bit-patterned medium (BPM); iterative decoding; low-density parity-check (LDPC) code; write error;

D O I：

10.1109/TMAG.2009.2022331

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, low-density parity-check (LDPC) coding and iterative decoding system is studied in the magnetic recording system using a bit-patterned medium (BPM). The magnetic recording system using BPM has a serious problem of requiring precise write synchronization to correctly write the recording sequence on each intended island. In this paper, an error locator using the parity-check matrix of LDPC code is utilized to curb the influence of write error on the iterative decoding process. The performance of the proposed system with the error locator is evaluated by computer simulation for magnetic recording system using BPM with synchronization write error at a recording density of 2 Tb/in(2) and it is compared with a conventional Reed-Solomon (RS) encoding and decoding system. The results show that the proposed system provides better performance.

引用

页码：3753 / 3756

页数：4

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