ATE350826T1 - Verfahren und vorrichtung zur effizienten berechnung von logarithmischen warscheinlichkeitsverhältnissen - Google Patents

Verfahren und vorrichtung zur effizienten berechnung von logarithmischen warscheinlichkeitsverhältnissen

Info

Publication number
ATE350826T1
ATE350826T1 AT02741053T AT02741053T ATE350826T1 AT E350826 T1 ATE350826 T1 AT E350826T1 AT 02741053 T AT02741053 T AT 02741053T AT 02741053 T AT02741053 T AT 02741053T AT E350826 T1 ATE350826 T1 AT E350826T1
Authority
AT
Austria
Prior art keywords
efficient calculation
logarithmic probability
probability ratios
log
bit
Prior art date
Application number
AT02741053T
Other languages
English (en)
Inventor
Allen He
Andrew Prentice
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE350826T1 publication Critical patent/ATE350826T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • 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
    • H04L1/0064—Concatenated codes
    • H04L1/0066—Parallel concatenated codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measurement Of Radiation (AREA)
AT02741053T 2001-07-12 2002-06-28 Verfahren und vorrichtung zur effizienten berechnung von logarithmischen warscheinlichkeitsverhältnissen ATE350826T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/904,355 US6993098B2 (en) 2001-07-12 2001-07-12 Method and apparatus for efficient calculating distance metric

Publications (1)

Publication Number Publication Date
ATE350826T1 true ATE350826T1 (de) 2007-01-15

Family

ID=25418997

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02741053T ATE350826T1 (de) 2001-07-12 2002-06-28 Verfahren und vorrichtung zur effizienten berechnung von logarithmischen warscheinlichkeitsverhältnissen

Country Status (8)

Country Link
US (1) US6993098B2 (de)
EP (1) EP1410551B1 (de)
JP (1) JP4023613B2 (de)
KR (1) KR100876473B1 (de)
CN (1) CN1326343C (de)
AT (1) ATE350826T1 (de)
DE (1) DE60217352T2 (de)
WO (1) WO2003007529A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1189355B1 (de) * 2000-08-04 2003-10-22 Motorola Inc. Lineare Approximation des LOG-MAP Algorithmus für Turbodekodierung
DE10247719A1 (de) * 2002-10-12 2004-04-22 Conti Temic Microelectronic Gmbh Verfahren zur Ermittlung des Abstands zwischen zwei Sende-Empfangs-Stationen und Sende-Empfangs-Stationen zur Durchführung des Verfahrens
DE10247718A1 (de) * 2002-10-12 2004-04-22 Conti Temic Microelectronic Gmbh Verfahren zur Ermittlung des Abstands zwischen einer ersten und zweiten Sende-Empfangs-Station
DK1654847T3 (en) 2003-06-23 2017-01-30 Seo Hong-Seok Demodulation method using soft decision for quadrature amplitude modulation and associated apparatus
GB2408901B (en) * 2003-12-05 2006-07-12 Motorola Inc A decoder for a wireless communication device
CN101095326B (zh) * 2004-11-05 2013-07-24 辉达技术英国有限公司 计算编码的正交振幅调制的信号的对数似然比的方法和系统
KR100626654B1 (ko) * 2005-06-16 2006-09-25 한국전자통신연구원 연판정 구복호 방법
TWI387274B (zh) * 2005-12-07 2013-02-21 徐洪錫 使用軟性決策用於正交振幅調變之調解變方法及其裝置
KR100706618B1 (ko) 2005-12-09 2007-04-12 한국전자통신연구원 반복 복호기를 위한 고차변조 방식에 적합한 연판정 디매핑방법 및 그를 이용한 오류 정정 장치
JP4907662B2 (ja) * 2006-08-22 2012-04-04 パナソニック株式会社 信号分離装置および信号分離方法
US8023581B2 (en) * 2006-09-19 2011-09-20 Nec Laboratories America, Inc. Max-log receiver for multiple-input multiple-output (MIMO) systems
AU2007214342A1 (en) * 2006-09-20 2008-04-03 Nec Australia Pty Ltd Demodulation method
CN1921366B (zh) * 2006-09-25 2010-07-21 华为技术有限公司 一种编码符号对数似然比的实现方法和装置
US8675771B2 (en) * 2006-09-29 2014-03-18 Nec Corporation Log likelihood ratio arithmetic circuit, transmission apparatus, log likelihood ratio arithmetic method, and program
KR100855019B1 (ko) * 2006-12-28 2008-09-02 포스데이타 주식회사 연판정 정보 생성 시스템 및 방법
GB0805054D0 (en) 2008-03-18 2008-04-16 Cambridge Silicon Radio Ltd Method and apparatus for performing log-likelihood calculations
KR101341611B1 (ko) 2012-05-24 2013-12-13 성균관대학교산학협력단 최대 우도 판정 기반 복호 장치 및 방법, 및 무선 통신 시스템에서 최대 우도 판정을 기반으로 하는 수신 장치 및 방법
GB2499270B (en) 2012-06-07 2014-07-09 Imagination Tech Ltd Efficient demapping of constellations
EP2994776B1 (de) * 2013-05-08 2019-11-13 Koninklijke Philips N.V. Vorrichtung und verfahren zur auswertung von gammastrahlenereignissen
US12627537B2 (en) * 2023-03-31 2026-05-12 Samsung Electronics Co., Ltd. Minimum euclidean distance finder and operating method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5657354A (en) 1995-05-15 1997-08-12 Thesling, Iii; William H. Planar approximating method for computing the log-likelihood ratio optimal signal metric of each component code decoder in 8-PSK block coded modulation systems
DE69923970T2 (de) * 1999-09-14 2006-04-27 Lucent Technologies Inc. Kanaldecodiereinrichtung und Verfahren zum Kanaldecodieren
US6594318B1 (en) * 1999-12-02 2003-07-15 Qualcomm Incorporated Method and apparatus for computing soft decision input metrics to a turbo decoder
US6907084B2 (en) * 2000-10-06 2005-06-14 Texas Instruments Incorporated Method and apparatus for processing modulation symbols for soft input decoders
US6807238B1 (en) * 2001-02-01 2004-10-19 Lsi Logic Corporation Method and apparatus for decoding M-PSK turbo code using new approximation technique
GB2388756A (en) * 2002-05-17 2003-11-19 Hewlett Packard Co Calculating an estimate of bit reliability in a OFDM receiver by multiplication of the channel state modulus

Also Published As

Publication number Publication date
JP4023613B2 (ja) 2007-12-19
WO2003007529A1 (en) 2003-01-23
DE60217352D1 (de) 2007-02-15
DE60217352T2 (de) 2007-10-25
EP1410551A1 (de) 2004-04-21
US20030053566A1 (en) 2003-03-20
CN1526215A (zh) 2004-09-01
JP2004522375A (ja) 2004-07-22
CN1326343C (zh) 2007-07-11
KR20040016978A (ko) 2004-02-25
US6993098B2 (en) 2006-01-31
KR100876473B1 (ko) 2008-12-31
EP1410551B1 (de) 2007-01-03

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