JP5790029B2 - 復号装置、復号方法、およびプログラム - Google Patents

復号装置、復号方法、およびプログラム Download PDF

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JP5790029B2
JP5790029B2 JP2011043720A JP2011043720A JP5790029B2 JP 5790029 B2 JP5790029 B2 JP 5790029B2 JP 2011043720 A JP2011043720 A JP 2011043720A JP 2011043720 A JP2011043720 A JP 2011043720A JP 5790029 B2 JP5790029 B2 JP 5790029B2
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decoding
circuit
bit
parity check
ldpc
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JP2012182623A (ja
JP2012182623A5 (enExample
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山岸 弘幸
弘幸 山岸
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Sony Corp
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Sony Corp
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Priority to CN2012100431018A priority patent/CN102655413A/zh
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    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05Error 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
    • H03M13/11Error 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
    • H03M13/1102Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1105Decoding
    • H03M13/1128Judging correct decoding and iterative stopping criteria other than syndrome check and upper limit for decoding iterations
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/37Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/3746Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 with iterative decoding
    • H03M13/3753Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 with iterative decoding using iteration stopping criteria
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05Error 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
    • H03M13/11Error 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
    • H03M13/1102Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05Error 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
    • H03M13/11Error 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
    • H03M13/1102Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1105Decoding
    • H03M13/1131Scheduling of bit node or check node processing
    • H03M13/1137Partly parallel processing, i.e. sub-blocks or sub-groups of nodes being processed in parallel
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05Error 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
    • H03M13/11Error 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
    • H03M13/1102Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1105Decoding
    • H03M13/1131Scheduling of bit node or check node processing
    • H03M13/114Shuffled, staggered, layered or turbo decoding schedules
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/03Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05Error 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
    • H03M13/13Linear codes
    • H03M13/134Non-binary linear block codes not provided for otherwise
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/29Coding, 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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2948Iterative decoding
    • H03M13/2951Iterative decoding using iteration stopping criteria
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/29Coding, 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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2957Turbo codes and decoding
    • H03M13/296Particular turbo code structure
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/29Coding, 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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2957Turbo codes and decoding
    • H03M13/2975Judging correct decoding, e.g. iteration stopping criteria
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/35Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/37Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/37Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/3738Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 with judging correct decoding
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/37Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/3746Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 with iterative decoding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0047Decoding adapted to other signal detection operation
    • H04L1/005Iterative decoding, including iteration between signal detection and decoding operation
    • H04L1/0051Stopping criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0061Error detection codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0064Concatenated codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/02Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618Space-time coding
    • H04L1/0625Transmitter arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/02Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618Space-time coding
    • H04L1/0631Receiver arrangements

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
JP2011043720A 2011-01-03 2011-03-01 復号装置、復号方法、およびプログラム Active JP5790029B2 (ja)

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Application Number Priority Date Filing Date Title
JP2011043720A JP5790029B2 (ja) 2011-03-01 2011-03-01 復号装置、復号方法、およびプログラム
US13/357,840 US8762812B2 (en) 2011-01-03 2012-01-25 Decoding device, decoding method, and program
CN2012100431018A CN102655413A (zh) 2011-03-01 2012-02-23 解码装置、解码方法和程序

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Publication number Priority date Publication date Assignee Title
US8640013B2 (en) * 2011-09-22 2014-01-28 Kabushiki Kaisha Toshiba Storage device
US9612903B2 (en) * 2012-10-11 2017-04-04 Micron Technology, Inc. Updating reliability data with a variable node and check nodes
US9116822B2 (en) 2012-12-07 2015-08-25 Micron Technology, Inc. Stopping criteria for layered iterative error correction
US11206042B2 (en) 2017-03-09 2021-12-21 Lg Electronics Inc. Layered decoding method for LDPC code and device therefor
KR102247164B1 (ko) * 2020-06-23 2021-05-03 한국과학기술원 채널 복호기의 동작과 결합한 플래시 메모리 읽기 방법 및 그 장치

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6944803B2 (en) * 2000-07-06 2005-09-13 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Through The Communications Research Centre Canada Code structure, encoder, encoding method, and associated decoder and decoding method and iteratively decodable code structure, encoder, encoding method, and associated iterative decoder and iterative decoding method
US20040109507A1 (en) * 2002-12-06 2004-06-10 Ido Kanter Sequential decoding of parity check codes
US7103825B2 (en) * 2003-08-19 2006-09-05 Mitsubishi Electric Research Laboratories, Inc. Decoding error-correcting codes based on finite geometries
JP4296949B2 (ja) * 2004-02-03 2009-07-15 ソニー株式会社 復号装置及び方法、並びに情報処理装置及び方法
KR100630177B1 (ko) * 2004-02-06 2006-09-29 삼성전자주식회사 최대 다이버시티 이득을 가지는 시공간 저밀도 패리티검사 부호 부호화/복호화 장치 및 방법
KR100924189B1 (ko) * 2004-12-02 2009-10-29 미쓰비시덴키 가부시키가이샤 복호 장치 및 통신 장치
US7373585B2 (en) * 2005-01-14 2008-05-13 Mitsubishi Electric Research Laboratories, Inc. Combined-replica group-shuffled iterative decoding for error-correcting codes
EP1717959A1 (en) * 2005-04-29 2006-11-02 STMicroelectronics N.V. Method and device for controlling the decoding of a LDPC encoded codeword, in particular for DVB-S2 LDPC encoded codewords
US7810014B2 (en) * 2005-11-07 2010-10-05 Samsung Electronics Co., Ltd. Apparatus and method for stopping iterative decoding in a mobile communication system
JP4229948B2 (ja) * 2006-01-17 2009-02-25 Necエレクトロニクス株式会社 復号装置、復号方法、及び受信装置
EP1841073A1 (en) * 2006-03-29 2007-10-03 STMicroelectronics N.V. Fast convergence LDPC decoding using BCJR algorithm at the check nodes
US8184712B2 (en) * 2006-04-30 2012-05-22 Hewlett-Packard Development Company, L.P. Robust and efficient compression/decompression providing for adjustable division of computational complexity between encoding/compression and decoding/decompression
JP4253332B2 (ja) 2006-07-03 2009-04-08 株式会社東芝 復号装置、方法およびプログラム
US20080052594A1 (en) * 2006-07-28 2008-02-28 Yedidia Jonathan S Method and system for replica group-shuffled iterative decoding of quasi-cyclic low-density parity check codes
JP4208017B2 (ja) * 2007-02-16 2009-01-14 ソニー株式会社 復号方法および復号装置
US8261170B2 (en) * 2007-06-19 2012-09-04 Mitsubishi Electric Research Laboratories, Inc. Multi-stage decoder for error-correcting codes
US7958429B2 (en) * 2007-07-02 2011-06-07 Broadcom Corporation Distributed processing LDPC (low density parity check) decoder
US20090113256A1 (en) * 2007-10-24 2009-04-30 Nokia Corporation Method, computer program product, apparatus and device providing scalable structured high throughput LDPC decoding
JP4462342B2 (ja) * 2007-12-18 2010-05-12 ソニー株式会社 復号装置および復号方法
JP2009225164A (ja) * 2008-03-17 2009-10-01 Toshiba Corp 復号装置および復号装置を有するテレビジョン受信機
JP2009290657A (ja) * 2008-05-30 2009-12-10 Fujitsu Ltd 誤り訂正装置
JP4881355B2 (ja) * 2008-08-19 2012-02-22 日本放送協会 Ldpc符号の符号化器及び復号器、並びにプログラム、送信装置及び受信装置
FR2944660B1 (fr) * 2009-04-16 2011-09-09 St Microelectronics Sa Decodeur ldpc
US20110138255A1 (en) * 2009-12-09 2011-06-09 Lee Daniel Chonghwan Probabilistic Learning-Based Decoding of Communication Signals
US8656249B2 (en) * 2011-09-07 2014-02-18 Lsi Corporation Multi-level LDPC layer decoder

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US20120173954A1 (en) 2012-07-05
US8762812B2 (en) 2014-06-24
CN102655413A (zh) 2012-09-05

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