WO2001043384A3 - Viterbi slicer for turbo codes - Google Patents

Viterbi slicer for turbo codes Download PDF

Info

Publication number
WO2001043384A3
WO2001043384A3 PCT/US2000/042545 US0042545W WO0143384A3 WO 2001043384 A3 WO2001043384 A3 WO 2001043384A3 US 0042545 W US0042545 W US 0042545W WO 0143384 A3 WO0143384 A3 WO 0143384A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
slicer
received
incoming
incoming signal
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.)
Ceased
Application number
PCT/US2000/042545
Other languages
French (fr)
Other versions
WO2001043384A2 (en
Inventor
Steven T Jaffe
Kelly B Cameron
Christopher R Jones
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.)
Broadcom Corp
Original Assignee
Broadcom Corp
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 Broadcom Corp filed Critical Broadcom Corp
Priority to AU45158/01A priority Critical patent/AU4515801A/en
Priority to EP00992618A priority patent/EP1234420A2/en
Publication of WO2001043384A2 publication Critical patent/WO2001043384A2/en
Publication of WO2001043384A3 publication Critical patent/WO2001043384A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0028—Correction of carrier offset at passband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0055—Closed loops single phase

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Error Detection And Correction (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

A method for synchronizing receivers that received turbo encoded signals to a received signal. Turbo encoding may enable signals to be decoded at a much lower signal to noise ratio than previously practical. A traditional method of synchronizing a receiver to an incoming signal is to use a slicer to determine a received symbol and then to compare the determined symbol to the incoming waveform, in order to adjust the phase of the slicer with respect to the incoming signal. At signal low levels, at which turbo encoded signals may be decoded, this slicing method may be prone to errors that may disrupt the synchronization of the receiver to the incoming signal. By replacing the slicer by a Viterbi decoder with zero traceback (i.e. one which does not consider future values of the signal only past values) a predection as to what the incoming signal is can be made. Because the Viterbi decoder can consider past signal values it can predict the present symbol being received with higher reliability than by using a slicer, which considers only the present value of the incoming signal.
PCT/US2000/042545 1999-12-03 2000-12-04 Viterbi slicer for turbo codes Ceased WO2001043384A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU45158/01A AU4515801A (en) 1999-12-03 2000-12-04 Viterbi slicer for turbo codes
EP00992618A EP1234420A2 (en) 1999-12-03 2000-12-04 Viterbi slicer for turbo codes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16880999P 1999-12-03 1999-12-03
US60/168,809 1999-12-03

Publications (2)

Publication Number Publication Date
WO2001043384A2 WO2001043384A2 (en) 2001-06-14
WO2001043384A3 true WO2001043384A3 (en) 2002-01-03

Family

ID=22613017

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/042545 Ceased WO2001043384A2 (en) 1999-12-03 2000-12-04 Viterbi slicer for turbo codes

Country Status (4)

Country Link
US (2) US7499507B2 (en)
EP (1) EP1234420A2 (en)
AU (1) AU4515801A (en)
WO (1) WO2001043384A2 (en)

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US7504890B2 (en) 2002-04-05 2009-03-17 Micronas Semiconductors, Inc. Data-directed frequency-and-phase lock loop

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JP5256229B2 (en) * 2010-02-19 2013-08-07 トヨタ自動車株式会社 Reception device, radio communication system, and reception method
KR102375951B1 (en) * 2015-07-29 2022-03-17 삼성전자주식회사 Method and appearatus for reducing false of decoding
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7504890B2 (en) 2002-04-05 2009-03-17 Micronas Semiconductors, Inc. Data-directed frequency-and-phase lock loop

Also Published As

Publication number Publication date
US20020067779A1 (en) 2002-06-06
US20090122925A1 (en) 2009-05-14
EP1234420A2 (en) 2002-08-28
US7848466B2 (en) 2010-12-07
AU4515801A (en) 2001-06-18
US7499507B2 (en) 2009-03-03
WO2001043384A2 (en) 2001-06-14

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