Research on Fast Soft-Decision Decoding

CHEN Jun; WANG Xin-mei; CAO Zhi-gang

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Research on Fast Soft-Decision Decoding

更新时间：2025-07-16

- Research on Fast Soft-Decision Decoding
- Acta Electronica Sinica Vol. 28, Issue 10, Pages: 74-77(2000)
- 作者机构：
  
  1. 清华大学电子工程系,北京,100084
  2. 西安电子科技大学ISN实验室,西安,710071
  3. 清华大学电子工程系北京,100084
  4. 西安电子科技大学ISN实验室西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.22
- Published：2000
- 稿件说明：
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CHEN Jun, WANG Xin-mei, CAO Zhi-gang. Research on Fast Soft-Decision Decoding[J]. Acta Electronica Sinica, 2000, 28(10): 74-77.
DOI：

CHEN Jun, WANG Xin-mei, CAO Zhi-gang. Research on Fast Soft-Decision Decoding[J]. Acta Electronica Sinica, 2000, 28(10): 74-77. DOI：

摘要

本文给出一种分组码快速软判决译码—可变门限Chase算法(VTC).采用人工智能搜索技术—A

算法

快速生成试探序列集合

并利用已经试探译码的信息

对试探序列集合进行分类

生成试探序列的等价类及其代表

并用最优门限对候选码字进行最佳测试

可实现快速软判决译码.模拟计算表明

与已有的软判决译码算法相比

该算法的译码速度更快而译码性能完全相同.

Abstract

A novel fast soft-decision decoding algorithm

called variable-threshold Chase algorithm (VTC)

is described.The set of test patterns is first produced by using A

algorithm

then is partitioned into the equivalence classes.During the partition

the equivalence class representatives can be generated.A variable threshold is derived for optimality test on a candidate codeword.With set partition and optimality test

a fast soft-decision decoding algorithm is obtained.Simulation results show the advantage of the proposed algorithm over soft-decision decoding algorithms available is much faster decoding speed without loss of decoding performance.

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