ECC-less LDPC coding for magnetic recording channels

被引：18

作者：

Morita, T ^{[1
]}

Sato, Y ^{[1
]}

Sugawara, T ^{[1
]}

机构：

[1] Fujitsu Labs Ltd, Kawasaki, Kanagawa 2118588, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 05期

关键词：

erasure; error-correction codes; low-density parity check codes; media defect; thermal asperity;

D O I：

10.1109/TMAG.2002.801874

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：

This paper presents a system for magnetic recording channels, using low-density parity check (LDPC) codes and a novel method of erasure compensation that can correct thermal asperity (TA) and media defects (MDs). The system does not require error-correction codes (ECC) based on the Reed-Solomon codes, and thus Is ECC-less. Simulation results show that the performance of ECC-less LDPC codes is better than that of the LDPC codes with ECC. It is also shown that LDPC codes of rate 0.814 can correct 48-byte TA and 24-byte MD, which are sufficient for practical hard disk drives.

引用

页码：2304 / 2306

页数：3

共 6 条

[1] LOW-DENSITY PARITY-CHECK CODES [J].