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GB0521861D0 - Decoding low-density parity check codes - Google Patents

Decoding low-density parity check codes

Info

Publication number
GB0521861D0
GB0521861D0 GBGB0521861.5A GB0521861A GB0521861D0 GB 0521861 D0 GB0521861 D0 GB 0521861D0 GB 0521861 A GB0521861 A GB 0521861A GB 0521861 D0 GB0521861 D0 GB 0521861D0
Authority
GB
United Kingdom
Prior art keywords
parity check
density parity
check codes
decoding low
decoding
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.)
Withdrawn
Application number
GBGB0521861.5A
Other versions
GB2431836A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to GB0521861A priority Critical patent/GB2431836A/en
Publication of GB0521861D0 publication Critical patent/GB0521861D0/en
Priority to KR1020060104732A priority patent/KR101021465B1/en
Priority to US11/586,759 priority patent/US8006161B2/en
Publication of GB2431836A publication Critical patent/GB2431836A/en
Withdrawn legal-status Critical Current

Links

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
    • H03M13/1105—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
    • 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
    • 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
    • H03M13/35—Unequal 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
    • 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
    • H03M13/6502—Reduction of hardware complexity or efficient processing
    • 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
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
    • 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
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes

Landscapes

  • 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)
GB0521861A 2005-10-26 2005-10-26 Decoding low-density parity-check codes using subsets of bit node messages and check node messages Withdrawn GB2431836A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0521861A GB2431836A (en) 2005-10-26 2005-10-26 Decoding low-density parity-check codes using subsets of bit node messages and check node messages
KR1020060104732A KR101021465B1 (en) 2005-10-26 2006-10-26 Apparatus and method for receiving signal in a communication system using a low density parity check code
US11/586,759 US8006161B2 (en) 2005-10-26 2006-10-26 Apparatus and method for receiving signal in a communication system using a low density parity check code

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0521861A GB2431836A (en) 2005-10-26 2005-10-26 Decoding low-density parity-check codes using subsets of bit node messages and check node messages

Publications (2)

Publication Number Publication Date
GB0521861D0 true GB0521861D0 (en) 2005-12-07
GB2431836A GB2431836A (en) 2007-05-02

Family

ID=35515781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0521861A Withdrawn GB2431836A (en) 2005-10-26 2005-10-26 Decoding low-density parity-check codes using subsets of bit node messages and check node messages

Country Status (1)

Country Link
GB (1) GB2431836A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2508435B (en) 2012-12-03 2015-05-27 Canon Kk Method and device for improving decoding of data received from one source by several receivers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7395495B2 (en) * 2004-01-12 2008-07-01 Intel Corporation Method and apparatus for decoding forward error correction codes
KR100594818B1 (en) * 2004-04-13 2006-07-03 한국전자통신연구원 A Decoding Apparatus of Low-Density Parity-Check Codes Using Sequential Decoding, and a method thereof

Also Published As

Publication number Publication date
GB2431836A (en) 2007-05-02

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)