ZA973213B - An optimal soft-output decoder for tall-biting trellis codes. - Google Patents

An optimal soft-output decoder for tall-biting trellis codes.

Info

Publication number
ZA973213B
ZA973213B ZA9703213A ZA973213A ZA973213B ZA 973213 B ZA973213 B ZA 973213B ZA 9703213 A ZA9703213 A ZA 9703213A ZA 973213 A ZA973213 A ZA 973213A ZA 973213 B ZA973213 B ZA 973213B
Authority
ZA
South Africa
Prior art keywords
tall
output decoder
trellis codes
optimal soft
biting trellis
Prior art date
Application number
ZA9703213A
Other languages
English (en)
Inventor
Stephen Michael Hladik
John Bailey Anderson
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of ZA973213B publication Critical patent/ZA973213B/xx

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
    • 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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/3723—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 using means or methods for the initialisation of the decoder
    • 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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/3905—Maximum a posteriori probability [MAP] decoding or approximations thereof based on trellis or lattice decoding, e.g. forward-backward algorithm, log-MAP decoding, max-log-MAP decoding
    • H03M13/3933—Decoding in probability domain
    • 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
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/3905—Maximum a posteriori probability [MAP] decoding or approximations thereof based on trellis or lattice decoding, e.g. forward-backward algorithm, log-MAP decoding, max-log-MAP decoding
    • H03M13/3938—Tail-biting
    • 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
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6577—Representation or format of variables, register sizes or word-lengths and quantization
    • H03M13/6583—Normalization other than scaling, e.g. by subtraction
ZA9703213A 1996-04-19 1997-04-15 An optimal soft-output decoder for tall-biting trellis codes. ZA973213B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/636,742 US5721746A (en) 1996-04-19 1996-04-19 Optimal soft-output decoder for tail-biting trellis codes

Publications (1)

Publication Number Publication Date
ZA973213B true ZA973213B (en) 1997-11-14

Family

ID=24553142

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9703213A ZA973213B (en) 1996-04-19 1997-04-15 An optimal soft-output decoder for tall-biting trellis codes.

Country Status (21)

Country Link
US (1) US5721746A (de)
EP (1) EP0834223A1 (de)
JP (1) JP3801211B2 (de)
KR (1) KR100531584B1 (de)
CN (1) CN1132320C (de)
AR (1) AR006722A1 (de)
AU (1) AU716761B2 (de)
BR (1) BR9702311A (de)
CA (1) CA2221137C (de)
CZ (1) CZ296383B6 (de)
HU (1) HU220832B1 (de)
ID (1) ID17231A (de)
IL (1) IL122526A (de)
MX (1) MX9710511A (de)
MY (1) MY125447A (de)
NO (1) NO975967L (de)
PL (1) PL182511B1 (de)
RU (1) RU2179367C2 (de)
UA (1) UA42841C2 (de)
WO (1) WO1997040583A1 (de)
ZA (1) ZA973213B (de)

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US6304996B1 (en) * 1999-03-08 2001-10-16 General Electric Company High-speed turbo decoder
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US6400290B1 (en) 1999-11-29 2002-06-04 Altera Corporation Normalization implementation for a logmap decoder
US6700937B1 (en) * 2000-01-05 2004-03-02 At&T Corp. Iterative decoding
KR100374787B1 (ko) * 2000-01-18 2003-03-04 삼성전자주식회사 대역 효율적인 연쇄 티.씨.엠 디코더 및 그 방법들
US7092457B1 (en) * 2000-01-18 2006-08-15 University Of Southern California Adaptive iterative detection
US6810502B2 (en) * 2000-01-28 2004-10-26 Conexant Systems, Inc. Iteractive decoder employing multiple external code error checks to lower the error floor
US6484285B1 (en) * 2000-02-07 2002-11-19 Ericsson, Inc. Tailbiting decoder and method
US6580769B1 (en) * 2000-02-14 2003-06-17 Motorola, Inc. Method and apparatus for backward recursion next state generation in recursive convolutional decoding
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US7356752B2 (en) * 2000-03-14 2008-04-08 Comtech Telecommunications Corp. Enhanced turbo product codes
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WO2001076079A2 (en) * 2000-04-04 2001-10-11 Comtech Telecommunication Corp. Enhanced turbo product code decoder system
JP4543522B2 (ja) * 2000-08-31 2010-09-15 ソニー株式会社 軟出力復号装置及び軟出力復号方法、並びに、復号装置及び復号方法
US7230978B2 (en) 2000-12-29 2007-06-12 Infineon Technologies Ag Channel CODEC processor configurable for multiple wireless communications standards
US7010052B2 (en) * 2001-04-16 2006-03-07 The Ohio University Apparatus and method of CTCM encoding and decoding for a digital communication system
WO2002091592A1 (en) * 2001-05-09 2002-11-14 Comtech Telecommunications Corp. Low density parity check codes and low density turbo product codes
US6763493B2 (en) * 2001-09-21 2004-07-13 The Directv Group, Inc. Method and system for performing decoding using a reduced-memory implementation
JP3549519B2 (ja) * 2002-04-26 2004-08-04 沖電気工業株式会社 軟出力復号器
US7346833B2 (en) * 2002-11-05 2008-03-18 Analog Devices, Inc. Reduced complexity turbo decoding scheme
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US7062407B2 (en) * 2004-09-13 2006-06-13 Microsoft Corporation Efficient backward recursion for computing posterior probabilities
US7603613B2 (en) 2005-02-17 2009-10-13 Samsung Electronics Co., Ltd. Viterbi decoder architecture for use in software-defined radio systems
US7627064B2 (en) * 2006-06-30 2009-12-01 Intel Corporation System and method for enhanced symbol generation
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US8358713B2 (en) * 2007-09-10 2013-01-22 Sarath Babu Govindarajulu High throughput and low latency map decoder
US8219896B2 (en) * 2007-10-23 2012-07-10 Telefonaktiebolaget L M Ericsson (Publ) Reduced-complexity decoding algorithms for tail-biting convolutional codes
JP4806673B2 (ja) * 2007-12-27 2011-11-02 ルネサスエレクトロニクス株式会社 復号装置及び復号方法
US8392811B2 (en) * 2008-01-07 2013-03-05 Qualcomm Incorporated Methods and systems for a-priori decoding based on MAP messages
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Also Published As

Publication number Publication date
CZ296383B6 (cs) 2006-03-15
US5721746A (en) 1998-02-24
RU2179367C2 (ru) 2002-02-10
BR9702311A (pt) 1999-02-02
CA2221137C (en) 2004-10-12
AR006722A1 (es) 1999-09-08
HU220832B1 (hu) 2002-05-28
CA2221137A1 (en) 1997-10-30
PL323523A1 (en) 1998-03-30
IL122526A0 (en) 1998-06-15
ID17231A (id) 1997-12-11
UA42841C2 (uk) 2001-11-15
KR100531584B1 (ko) 2006-04-20
KR19990028216A (ko) 1999-04-15
CN1189936A (zh) 1998-08-05
AU2801997A (en) 1997-11-12
IL122526A (en) 2003-10-31
MX9710511A (es) 1998-03-31
NO975967L (no) 1998-02-03
MY125447A (en) 2006-08-30
EP0834223A1 (de) 1998-04-08
AU716761B2 (en) 2000-03-09
NO975967D0 (no) 1997-12-18
CZ407497A3 (cs) 1998-06-17
JP3801211B2 (ja) 2006-07-26
CN1132320C (zh) 2003-12-24
JPH11508440A (ja) 1999-07-21
HUP9901431A3 (en) 1999-12-28
PL182511B1 (pl) 2002-01-31
WO1997040583A1 (en) 1997-10-30
HUP9901431A2 (hu) 1999-08-30

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