Turbo decoding for high-rate concatenated parity-check codes on PRML channels

被引：4
|
作者：
Sawaguchi, H [1 ]
Wolf, JK
机构：
[1] Hitachi Ltd, Cent Res Lab, Kokubunji, Tokyo 1858601, Japan
[2] Univ Calif San Diego, Ctr Magnet Recording Res, La Jolla, CA 92093 USA
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2000年 / 36卷 / 05期
关键词：
concatenated coding; turbo iterative decoding; parity-check code; partial response signaling;
D O I：
10.1109/20.908347
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：
A simple turbo decoding scheme is proposed for partial-response (PR) channels by using high-rate parity-check codes as an outer error-correction code (ECC), The use of the simple parity codes enables a simplified and high-speed implementation of the a posterior probability (APP) decoder. Its key feature is an iterative decoding step for the parallel concatenation of two parity-check outer codes connected via an interleaver, The parity iterative decoding can provide the high-rate parity-check outer codes with superior correction capability for random error-events, so it can help to reduce the decoding latency, The combination of the serial turbo decoding for a modified E-2 PR ((MEPR)-P-2) channel and the parity iterative decoding demonstrated a coding gain of 4-5 dB at a bit error rate of 1.0E-5 for a coding rate of 8/9.
引用
收藏
页码：2173 / 2175
页数：3
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