Title :
Application of erasure error correction to concatenated partial-response channel code
Author :
Kobayashi, Naoya ; Sawaguchi, Hideki ; Kondo, Masaharu ; Mita, Seiichi
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
Erasure error correction based on List-SOVA has been applied to partial-response channel code for high-density magnetic recording. Soft-output information extracted from modified EEPR4ML is used. To achieve as high a total coding rate as possible, a 16/17MTR(3;11) code and a rate 544/561 cyclic redundancy check code (CRCC) are combined. CRCC-false-correction deteriorates erasure error correction performance. To solve this problem, a method for detecting CRCC-false-correction has been proposed. Simulation results show that our method can reduce block error rates to 1/10 the case without erasure error correction at the user density of 2.8
Keywords :
concatenated codes; digital magnetic recording; error correction codes; error detection codes; magnetic disc storage; partial response channels; CRCC-false-correction detection; List-SOVA; block error rates; coding rate; concatenated partial-response channel code; cyclic redundancy check code; erasure error correction; error correction performance; hard disk drives; high-density magnetic recording; modified EEPR4ML; simulation results; soft-output information; user density; Concatenated codes; Decoding; Error analysis; Error correction; Error correction codes; Laboratories; Magnetic recording; Memory; Modulation coding; Signal processing;
Conference_Titel :
Communications, 1999. ICC '99. 1999 IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-5284-X
DOI :
10.1109/ICC.1999.765507
