WO2002067527A3 - Multicarrier equalisation using multiplication by a leakage matrix - Google Patents

Multicarrier equalisation using multiplication by a leakage matrix Download PDF

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Publication number
WO2002067527A3
WO2002067527A3 PCT/IB2002/000129 IB0200129W WO02067527A3 WO 2002067527 A3 WO2002067527 A3 WO 2002067527A3 IB 0200129 W IB0200129 W IB 0200129W WO 02067527 A3 WO02067527 A3 WO 02067527A3
Authority
WO
WIPO (PCT)
Prior art keywords
multiplication
receiver
amplitudes
multicarrier
multicarrier signal
Prior art date
Application number
PCT/IB2002/000129
Other languages
French (fr)
Other versions
WO2002067527A2 (en
Inventor
Alexei Gorokhov
Johan P M G Linnartz
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
Priority to EP02742450A priority Critical patent/EP1364507A2/en
Priority to JP2002566927A priority patent/JP2004519900A/en
Priority to US10/078,952 priority patent/US7054354B2/en
Publication of WO2002067527A2 publication Critical patent/WO2002067527A2/en
Publication of WO2002067527A3 publication Critical patent/WO2002067527A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H04L27/2665—Fine synchronisation, e.g. by positioning the FFT window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03522—Frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms
    • H04L2025/03624—Zero-forcing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03656—Initialisation
    • H04L2025/03662—Initialisation to a fixed value
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03656—Initialisation
    • H04L2025/03668—Initialisation to the value at the end of a previous adaptation period

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
  • Radio Relay Systems (AREA)

Abstract

Described is a transmission system for transmitting a multicarrier signal from a transmitter (10) to a receiver (20). The multicarrier signal comprises a plurality of subcarriers. The receiver (20) comprises a channel estimator (28) for estimating amplitudes of the subcarriers and for estimating time derivatives of the amplitudes. The receiver (20) further comprises an equalizer (24) for canceling intercarrier interference included in the received multicarrier signal in dependence on the estimated amplitudes and derivatives (29). The receiver (20) comprises a multiplication by a leakage matrix , and the multiplication is implemented in the following sequence N-point IFFT (82), N pointwise multiplications (84) and an N-point FFT (86).
PCT/IB2002/000129 2001-02-22 2002-01-16 Multicarrier equalisation using multiplication by a leakage matrix WO2002067527A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02742450A EP1364507A2 (en) 2001-02-22 2002-01-16 Multicarrier transmission system with reduced complexity leakage matrix multiplication
JP2002566927A JP2004519900A (en) 2001-02-22 2002-01-16 Multicarrier transmission system with reduced computational leak matrix multiplier
US10/078,952 US7054354B2 (en) 2001-02-22 2002-02-19 Multicarrier transmission system with reduced complexity leakage matrix multiplication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01200686.2 2001-02-22
EP01200686 2001-02-22

Publications (2)

Publication Number Publication Date
WO2002067527A2 WO2002067527A2 (en) 2002-08-29
WO2002067527A3 true WO2002067527A3 (en) 2002-11-28

Family

ID=8179937

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/000129 WO2002067527A2 (en) 2001-02-22 2002-01-16 Multicarrier equalisation using multiplication by a leakage matrix

Country Status (5)

Country Link
US (1) US7054354B2 (en)
EP (1) EP1364507A2 (en)
JP (1) JP2004519900A (en)
CN (1) CN1224228C (en)
WO (1) WO2002067527A2 (en)

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Also Published As

Publication number Publication date
US20020146063A1 (en) 2002-10-10
US7054354B2 (en) 2006-05-30
JP2004519900A (en) 2004-07-02
EP1364507A2 (en) 2003-11-26
WO2002067527A2 (en) 2002-08-29
CN1462531A (en) 2003-12-17
CN1224228C (en) 2005-10-19

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