JPWO2014122772A1 - 送信機および受信機、並びに符号化率可変方法 - Google Patents
送信機および受信機、並びに符号化率可変方法 Download PDFInfo
- Publication number
- JPWO2014122772A1 JPWO2014122772A1 JP2014560609A JP2014560609A JPWO2014122772A1 JP WO2014122772 A1 JPWO2014122772 A1 JP WO2014122772A1 JP 2014560609 A JP2014560609 A JP 2014560609A JP 2014560609 A JP2014560609 A JP 2014560609A JP WO2014122772 A1 JPWO2014122772 A1 JP WO2014122772A1
- Authority
- JP
- Japan
- Prior art keywords
- check matrix
- error correction
- puncture
- parity check
- matrix
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000011159 matrix material Substances 0.000 claims abstract description 172
- 238000012937 correction Methods 0.000 claims abstract description 95
- 238000012545 processing Methods 0.000 claims description 13
- 238000011084 recovery Methods 0.000 claims 1
- 125000004122 cyclic group Chemical group 0.000 description 14
- 238000004891 communication Methods 0.000 description 13
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 230000008707 rearrangement Effects 0.000 description 9
- 230000006866 deterioration Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000013598 vector Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- H03M13/033—Theoretical methods to calculate these checking codes
- H03M13/036—Heuristic code construction methods, i.e. code construction or code search based on using trial-and-error
-
- 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
- H03M13/1154—Low-density parity-check convolutional codes [LDPC-CC]
-
- 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
- H03M13/118—Parity check matrix structured for simplifying encoding, e.g. by having a triangular or an approximate triangular structure
- H03M13/1185—Parity check matrix structured for simplifying encoding, e.g. by having a triangular or an approximate triangular structure wherein the parity-check matrix comprises a part with a double-diagonal
-
- 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
- H03M13/61—Aspects and characteristics of methods and arrangements for error correction or error detection, not provided for otherwise
- H03M13/615—Use of computational or mathematical techniques
- H03M13/616—Matrix operations, especially for generator matrices or check matrices, e.g. column or row permutations
-
- 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
- H03M13/63—Joint error correction and other techniques
- H03M13/635—Error control coding in combination with rate matching
- H03M13/6362—Error control coding in combination with rate matching by puncturing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Probability & Statistics with Applications (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Algebra (AREA)
- Computing Systems (AREA)
- Error Detection And Correction (AREA)
Abstract
Description
非特許文献1によれば、空間結合LDPC符号が、高い誤り訂正性能を有することが示されているものの、具体的な検査行列の構成(つまり、各小検査行列の具体的な構成)について、または小検査行列の構成方法については、非特許文献1には開示されていない。これは、密度発展法という評価方法の性質によるものであり、すなわち、小検査行列の具体的な構成について、何も与えずに評価を行う方法であることによる。
また、この発明に係る誤り訂正符号の符号化率可変装置および方法によれば、パンクチャ位置決定信号に従って、パリティビットを削るパンクチャ回路(ステップ)と、パンクチャ位置決定信号に従って、パンクチャされたパリティビットを復元するパンクチャ復元処理部(ステップ)と、を備え、パンクチャ位置決定信号に従って決定されるパンクチャ位置は、パンクチャによって直接影響を受ける検査行列の領域に、2つ以上の1が含まれる列の数が最小となるようなパンクチャ位置である。
そのため、空間結合LDPC符号を基にして、高い誤り訂正性能を有するLDPC符号の検査行列のデータ構造、並びに高い誤り訂正性能を実現する誤り訂正符号の符号化率可変装置および可変方法を得ることができる。
誤り訂正を可能とするパリティビットを情報ビットに基づいて算出し、符号語を構成することは、誤り訂正符号化と呼ばれる。誤り訂正符号化の計算手順は、誤り訂正符号方式によって異なるが、例えばLDPC符号をはじめとする線形ブロック符号では、検査行列のデータ構造に基づいて誤り訂正符号化を行う。ここで、誤り訂正符号化方法の一例を示す。
この発明の実施の形態2では、上記実施の形態1のデータ構造の検査行列をもつLDPC符号に対して、符号化率の可変を実現する方法および装置を示す。
また、この発明に係る符号化率可変方法によれば、定められたパンクチャ位置に従って、LDPC符号の符号化により生成された符号語のパリティビットを削減するパンクチャステップと、パンクチャ位置に従ってパンクチャステップで削減されたパリティビットを復元するパンクチャ復元ステップと、を備え、パンクチャ位置は、LDPC符号の検査行列のパンクチャによって直接影響を受ける領域に、2つ以上の1が含まれる列の数を最小にする位置である。
そのため、空間結合LDPC符号を基にして、高い誤り訂正性能を有する送信機および受信機、並びに高い誤り訂正性能を実現する符号化率可変方法を得ることができる。
Claims (7)
- 誤り訂正符号の検査行列のデータ構造であって、
前記誤り訂正符号は、LDPC符号であり、
前記検査行列は、前記検査行列の一部の列からなる部分行列に対して、行を並び替えた行列構造を有する
誤り訂正符号の検査行列のデータ構造。 - 前記一部の列は、前記検査行列の列に含まれる1の数である列重みが、所定値以上の列である
請求項1に記載の誤り訂正符号の検査行列のデータ構造。 - 前記所定値は、3である
請求項2に記載の誤り訂正符号の検査行列のデータ構造。 - 誤り訂正符号の符号化率可変装置であって、
パンクチャ位置決定信号に従って、パリティビットを削るパンクチャ回路と、
前記パンクチャ位置決定信号に従って、パンクチャされたパリティビットを復元するパンクチャ復元処理部と、を備え、
前記パンクチャ位置決定信号に従って決定されるパンクチャ位置は、パンクチャによって直接影響を受ける検査行列の領域に、2つ以上の1が含まれる列の数が最小となるようなパンクチャ位置である
誤り訂正符号の符号化率可変装置。 - 前記誤り訂正符号の検査行列のデータ構造は、請求項1から請求項3までの何れか1項に記載された誤り訂正符号の検査行列のデータ構造である
請求項4に記載の誤り訂正符号の符号化率可変装置。 - 誤り訂正符号の符号化率可変装置によって実行される符号化率可変方法であって、
パンクチャ位置決定信号に従って、パリティビットを削るパンクチャステップと、
前記パンクチャ位置決定信号に従って、パンクチャされたパリティビットを復元するパンクチャ復元ステップと、を備え、
前記パンクチャ位置決定信号に従って決定されるパンクチャ位置は、パンクチャによって直接影響を受ける検査行列の領域に、2つ以上の1が含まれる列の数が最小となるようなパンクチャ位置である
誤り訂正符号の符号化率可変方法。 - 前記誤り訂正符号の検査行列のデータ構造は、請求項1から請求項3までの何れか1項に記載された誤り訂正符号の検査行列のデータ構造である
請求項6に記載の誤り訂正符号の符号化率可変方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2013/053047 WO2014122772A1 (ja) | 2013-02-08 | 2013-02-08 | 誤り訂正符号の検査行列のデータ構造、並びに誤り訂正符号の符号化率可変装置および可変方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP5875713B2 JP5875713B2 (ja) | 2016-03-02 |
JPWO2014122772A1 true JPWO2014122772A1 (ja) | 2017-01-26 |
Family
ID=51299384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014560609A Active JP5875713B2 (ja) | 2013-02-08 | 2013-02-08 | 送信機および受信機、並びに符号化率可変方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10340948B2 (ja) |
EP (1) | EP2955851A4 (ja) |
JP (1) | JP5875713B2 (ja) |
CN (1) | CN104981979B (ja) |
WO (1) | WO2014122772A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105680877B (zh) * | 2014-11-19 | 2019-06-28 | 香港理工大学 | 一种cc-qc-ldpc码的构建方法及译码装置 |
WO2016140511A1 (en) * | 2015-03-02 | 2016-09-09 | Samsung Electronics Co., Ltd. | Transmitter and method for generating additional parity thereof |
KR101800414B1 (ko) * | 2015-03-02 | 2017-11-23 | 삼성전자주식회사 | 송신 장치 및 그의 부가 패리티 생성 방법 |
JP2016213701A (ja) * | 2015-05-11 | 2016-12-15 | 富士通株式会社 | 誤り訂正方法、半導体装置、送受信モジュールおよび伝送装置 |
CN104852747B (zh) * | 2015-05-28 | 2018-05-01 | 西安电子科技大学 | 一种可变速率sc-ldpc码的设计方法 |
JP6595218B2 (ja) * | 2015-06-04 | 2019-10-23 | 日本放送協会 | 連接符号を用いた受信装置及びチップ |
KR102600952B1 (ko) * | 2016-05-04 | 2023-11-13 | 삼성전자주식회사 | 송신 장치 및 그의 신호 처리 방법 |
CN110583023B (zh) * | 2017-05-04 | 2022-03-01 | 三星电子株式会社 | 在通信或广播系统中用于信道编码和解码的方法和设备 |
JP7124276B2 (ja) * | 2017-08-14 | 2022-08-24 | 富士通株式会社 | 伝送装置、及び誤り訂正方法 |
EP3700094B1 (en) * | 2017-11-27 | 2024-04-17 | Mitsubishi Electric Corporation | Error correction device and optical transmission/reception device |
EP3771105B1 (en) | 2018-05-29 | 2022-10-05 | Mitsubishi Electric Corporation | Transmitter, receiver, communication system, and coding rate revision method |
CN109639288B (zh) * | 2018-10-24 | 2023-07-04 | 上海无线电设备研究所 | 适用于qc-ldpc码的通用化译码方法及译码模块 |
CN109639392B (zh) * | 2018-11-09 | 2020-03-27 | 清华大学 | 广播信道传输的空间耦合ldpc码的构造方法及系统 |
US10942809B2 (en) | 2018-12-20 | 2021-03-09 | Micron Technology, Inc. | Changing of error correction codes based on the wear of a memory sub-system |
US20220006470A1 (en) * | 2020-07-06 | 2022-01-06 | Santhosh Vanaparthy | Apparatuses, Devices, Methods and Computer Programs for Generating and Employing LDPC Matrices |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1526647B1 (en) * | 2002-07-02 | 2008-10-01 | Mitsubishi Electric Corporation | Generation of a check matrix for irregular low-density parity-check (LDPC) codes |
KR20040033554A (ko) | 2002-10-15 | 2004-04-28 | 삼성전자주식회사 | 에러 정정 부호화 장치 및 그 방법 |
US20100107033A1 (en) * | 2007-01-31 | 2010-04-29 | Kenichi Kuri | Radio communication device and puncturing method |
CN101447851B (zh) * | 2007-11-26 | 2012-01-04 | 清华大学 | 一种准循环低密度奇偶校验码的生成方法 |
JP5664919B2 (ja) | 2011-06-15 | 2015-02-04 | ソニー株式会社 | データ処理装置、及び、データ処理方法 |
-
2013
- 2013-02-08 EP EP13874449.5A patent/EP2955851A4/en not_active Ceased
- 2013-02-08 CN CN201380072589.XA patent/CN104981979B/zh active Active
- 2013-02-08 US US14/762,606 patent/US10340948B2/en active Active
- 2013-02-08 JP JP2014560609A patent/JP5875713B2/ja active Active
- 2013-02-08 WO PCT/JP2013/053047 patent/WO2014122772A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US10340948B2 (en) | 2019-07-02 |
EP2955851A1 (en) | 2015-12-16 |
WO2014122772A1 (ja) | 2014-08-14 |
US20150365105A1 (en) | 2015-12-17 |
CN104981979B (zh) | 2019-03-22 |
EP2955851A4 (en) | 2016-09-28 |
JP5875713B2 (ja) | 2016-03-02 |
CN104981979A (zh) | 2015-10-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5875713B2 (ja) | 送信機および受信機、並びに符号化率可変方法 | |
US20110289375A1 (en) | Method for constructing an ldpc code, transmitter, and receiver | |
US8812930B1 (en) | Parallel encoder for low-density parity-check (LDPC) codes | |
JP2012231473A (ja) | 可変サイズのパケットのldpc符号化及び復号化 | |
KR102054556B1 (ko) | 사전 정렬된 입력을 사용하는 기본 검사 노드 기반의 신드롬 디코딩 | |
JPWO2007108396A1 (ja) | 通信装置、復号装置、情報伝送方法および復号方法 | |
CN110999093B (zh) | 用于非二进制ldpc码的扩展最小和(ems)解码的校验节点处理的混合架构 | |
KR102289928B1 (ko) | 데이터 프로세싱 방법 및 디바이스 | |
WO2015135298A1 (zh) | 一种支持低码率编码的方法及装置、计算机存储介质 | |
KR101216075B1 (ko) | 채널 코드를 이용한 복호화 및 복호화 장치 | |
KR101147768B1 (ko) | 채널 코드를 이용한 복호화 방법 및 장치 | |
KR100918741B1 (ko) | 이동 통신 시스템에서 채널 부호화 장치 및 방법 | |
EP3047575B1 (en) | Encoding of multiple different quasi-cyclic low-density parity check (qc-ldpc) codes sharing common hardware resources | |
KR20080000479A (ko) | 통신 시스템에서 신호 수신 장치 및 방법 | |
CN108206722B (zh) | 高码率数据发送方法和装置 | |
CN107733441B (zh) | 编码方法及装置、译码方法及装置 | |
US20170288697A1 (en) | Ldpc shuffle decoder with initialization circuit comprising ordered set memory | |
JP5523064B2 (ja) | 復号装置及び方法 | |
JPWO2019229846A1 (ja) | 送信機、受信機、通信システム、符号化率の変更方法、制御回路およびプログラム | |
CN108234069B (zh) | 低码率数据发送方法和装置 | |
WO2019234923A1 (ja) | 送信装置、受信装置および符号化方法 | |
KR101354731B1 (ko) | 통신 시스템에서 연접 저밀도 생성 행렬 부호 부호화/복호장치 및 방법 | |
KR100800775B1 (ko) | 이동 통신 시스템에서 채널 부호화 장치 및 방법 | |
KR101391853B1 (ko) | 저밀도 역 코드를 이용한 부호화/복호화 방법 및 장치 | |
KR20140016775A (ko) | 저밀도 역 코드를 이용한 부호화/복호화 방법 및 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20151222 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20160119 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5875713 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |