A soft-output Viterbi equalizer employing expanded memory length in a trellis

被引：0
|
作者：
Nagayasu, T
Kubo, H
Murakami, K
Fujino, T
机构：
[1] Mitsubishi Electric Corp, Kamakura-shi, Japan
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 1997年 / E80B卷 / 02期
关键词：
soft-output Viterbi equalizer; MAP algorithm; Viterbi algorithm; soft-decision; intersymbol interference;
D O I：
暂无
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 novel approach to a soft-output equalizer, which makes a symbol-by-symbol soft-decision based on a posteriori probabilities (APP's) criterion in the presence of intersymbol interference. The authors propose a soft-output Viterbi equalizer (SOVE) employing expanded memory length in a trellis of the Viterbi algorithm with small arithmetic complexity. The proposed equalizer gives suboptimum soft-decision closer to that of a equalizer with the maximum a posteriori probabilities (MAP) algorithm than the conventional SOVE.
引用
收藏
页码：381 / 385
页数：5
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