CN102957436B - 一种低密度奇偶校验码译码装置和译码方法 - Google Patents
一种低密度奇偶校验码译码装置和译码方法 Download PDFInfo
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- CN102957436B CN102957436B CN201110238068.XA CN201110238068A CN102957436B CN 102957436 B CN102957436 B CN 102957436B CN 201110238068 A CN201110238068 A CN 201110238068A CN 102957436 B CN102957436 B CN 102957436B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
- H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
- H03M13/1148—Structural properties of the code parity-check or generator matrix
- H03M13/116—Quasi-cyclic LDPC [QC-LDPC] codes, i.e. the parity-check matrix being composed of permutation or circulant sub-matrices
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
- H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
- H03M13/1105—Decoding
- H03M13/1111—Soft-decision decoding, e.g. by means of message passing or belief propagation algorithms
- H03M13/1117—Soft-decision decoding, e.g. by means of message passing or belief propagation algorithms using approximations for check node processing, e.g. an outgoing message is depending on the signs and the minimum over the magnitudes of all incoming messages according to the min-sum rule
- H03M13/112—Soft-decision decoding, e.g. by means of message passing or belief propagation algorithms using approximations for check node processing, e.g. an outgoing message is depending on the signs and the minimum over the magnitudes of all incoming messages according to the min-sum rule with correction functions for the min-sum rule, e.g. using an offset or a scaling factor
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/65—Purpose and implementation aspects
- H03M13/6577—Representation or format of variables, register sizes or word-lengths and quantization
- H03M13/658—Scaling by multiplication or division
Abstract
Description
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CN201110238068.XA CN102957436B (zh) | 2011-08-17 | 2011-08-17 | 一种低密度奇偶校验码译码装置和译码方法 |
PCT/CN2012/080172 WO2013023596A1 (zh) | 2011-08-17 | 2012-08-15 | 一种低密度奇偶校验码译码装置和译码方法 |
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CN201110238068.XA CN102957436B (zh) | 2011-08-17 | 2011-08-17 | 一种低密度奇偶校验码译码装置和译码方法 |
Publications (2)
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CN102957436A CN102957436A (zh) | 2013-03-06 |
CN102957436B true CN102957436B (zh) | 2017-11-10 |
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CN201110238068.XA Active CN102957436B (zh) | 2011-08-17 | 2011-08-17 | 一种低密度奇偶校验码译码装置和译码方法 |
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CN (1) | CN102957436B (zh) |
WO (1) | WO2013023596A1 (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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SG10201707007QA (en) | 2015-10-13 | 2017-09-28 | Huawei Tech Co Ltd | Decoding device and method and signal transmission system |
CN105680879B (zh) * | 2016-01-07 | 2019-04-23 | 西安电子科技大学 | 兼容dvb-s2x标准的ldpc译码器设计方法 |
US10078155B2 (en) | 2016-06-24 | 2018-09-18 | Climacell Inc. | Real-time precipitation forecasting system |
CN108540139B (zh) * | 2018-04-17 | 2022-05-20 | 国家新闻出版广电总局广播科学研究院 | 一种通用的准循环ldpc码编码器的fpga实现方法及装置 |
CN113271177B (zh) * | 2020-02-17 | 2022-09-13 | 广州海格通信集团股份有限公司 | 低密度奇偶校验码译码方法、装置、系统和无线接收设备 |
CN113742898A (zh) * | 2021-08-13 | 2021-12-03 | 华力智芯(成都)集成电路有限公司 | 一种应用于低轨卫星互联网系统的ldpc译码器逻辑设计方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1713530A (zh) * | 2004-06-22 | 2005-12-28 | 印芬龙科技股份有限公司 | 解码低密度奇偶校验(ldpc)码字的ldpc解码器 |
WO2008016117A1 (fr) * | 2006-08-04 | 2008-02-07 | Mitsubishi Electric Corporation | Procédé de génération de matrice d'inspection, procédé d'encodage, dispositif et système de communication et encodeur |
CN101212277A (zh) * | 2006-12-29 | 2008-07-02 | 中兴通讯股份有限公司 | 支持多协议标准的ldpc码译码装置 |
CN101471674A (zh) * | 2007-12-28 | 2009-07-01 | 三星电子株式会社 | 低密度奇偶校验码译码方法及装置 |
CN101534166A (zh) * | 2008-03-10 | 2009-09-16 | 上海明波通信技术有限公司 | 准循环低密度奇偶校验码解码器及解码方法 |
Family Cites Families (3)
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US20080028271A1 (en) * | 2006-07-25 | 2008-01-31 | Legend Silicon | Method for generating ldpc code for a ldpc based tds-ofdm system |
CN100553155C (zh) * | 2007-04-29 | 2009-10-21 | 浙江大学 | 支持多速率多码长的串行低密度奇偶校验码译码器 |
CN102005250A (zh) * | 2010-10-27 | 2011-04-06 | 记忆科技(深圳)有限公司 | 准循环低密度奇偶校验码译码器及译码方法 |
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- 2011-08-17 CN CN201110238068.XA patent/CN102957436B/zh active Active
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- 2012-08-15 WO PCT/CN2012/080172 patent/WO2013023596A1/zh active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1713530A (zh) * | 2004-06-22 | 2005-12-28 | 印芬龙科技股份有限公司 | 解码低密度奇偶校验(ldpc)码字的ldpc解码器 |
WO2008016117A1 (fr) * | 2006-08-04 | 2008-02-07 | Mitsubishi Electric Corporation | Procédé de génération de matrice d'inspection, procédé d'encodage, dispositif et système de communication et encodeur |
CN101212277A (zh) * | 2006-12-29 | 2008-07-02 | 中兴通讯股份有限公司 | 支持多协议标准的ldpc码译码装置 |
CN101471674A (zh) * | 2007-12-28 | 2009-07-01 | 三星电子株式会社 | 低密度奇偶校验码译码方法及装置 |
CN101534166A (zh) * | 2008-03-10 | 2009-09-16 | 上海明波通信技术有限公司 | 准循环低密度奇偶校验码解码器及解码方法 |
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WO2013023596A1 (zh) | 2013-02-21 |
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