WO2003028269A3 - An adaptive coding scheme for ofdm wlans with a priori channel state information at the transmitter - Google Patents

An adaptive coding scheme for ofdm wlans with a priori channel state information at the transmitter Download PDF

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Publication number
WO2003028269A3
WO2003028269A3 PCT/US2002/030058 US0230058W WO03028269A3 WO 2003028269 A3 WO2003028269 A3 WO 2003028269A3 US 0230058 W US0230058 W US 0230058W WO 03028269 A3 WO03028269 A3 WO 03028269A3
Authority
WO
WIPO (PCT)
Prior art keywords
ofdm
transmitter
state information
sub
channel state
Prior art date
Application number
PCT/US2002/030058
Other languages
French (fr)
Other versions
WO2003028269A2 (en
Inventor
John David Terry
Original Assignee
Nokia Corp
John David Terry
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 Nokia Corp, John David Terry filed Critical Nokia Corp
Priority to AU2002334634A priority Critical patent/AU2002334634A1/en
Publication of WO2003028269A2 publication Critical patent/WO2003028269A2/en
Publication of WO2003028269A3 publication Critical patent/WO2003028269A3/en

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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
    • H04L1/0057—Block 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • 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
    • H03M13/13—Linear codes
    • H03M13/132—Algebraic geometric codes, e.g. Goppa 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter

Abstract

A method and a system provide adaptive coding of an Orthogonal Frequency Division Multiplexing (OFDM) signal at a transmitter in an OFDM wireless local area network (WLAN) system in which channel state information is available at the transmitter. At least one block code (201), such as a Reed-Solomon code, is selected for handling errors based on a predetermined target data rate and a predetermined packet length for the OFDM signal. A number of bits available for parity symbols that can be used for generating a selected integer number of OFDM symbols (203), and a number of erasure errors and a number of random errors over sub-carriers of the OFDM signal are determined based on the determined number of parity symbols (205). The OFDM signal is encoded based using each selected block code (207), such that the sub-carriers are ordered from a sub-carrier having a weakest channel amplitude to a channel having a strongest channel amplitude.
PCT/US2002/030058 2001-09-26 2002-09-23 An adaptive coding scheme for ofdm wlans with a priori channel state information at the transmitter WO2003028269A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002334634A AU2002334634A1 (en) 2001-09-26 2002-09-23 An adaptive coding scheme for ofdm wlans with a priori channel state information at the transmitter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96220001A 2001-09-26 2001-09-26
US09/962,200 2001-09-26

Publications (2)

Publication Number Publication Date
WO2003028269A2 WO2003028269A2 (en) 2003-04-03
WO2003028269A3 true WO2003028269A3 (en) 2003-05-22

Family

ID=25505539

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/030058 WO2003028269A2 (en) 2001-09-26 2002-09-23 An adaptive coding scheme for ofdm wlans with a priori channel state information at the transmitter

Country Status (2)

Country Link
AU (1) AU2002334634A1 (en)
WO (1) WO2003028269A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100876791B1 (en) * 2006-01-13 2009-01-07 삼성전자주식회사 Method and apparatus for data coded symbol mapping based on channel estimation in a frequency division multiple access system
JP2012147197A (en) * 2011-01-11 2012-08-02 Panasonic Corp Communication device, communication method, and communication program

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6282168B1 (en) * 1997-06-19 2001-08-28 Qualcomm Inc. Bit interleaving for orthogonal frequency division multiplexing in the transmission of digital signals
US6289000B1 (en) * 2000-05-19 2001-09-11 Intellon Corporation Frame control encoder/decoder for robust OFDM frame transmissions
US6292917B1 (en) * 1998-09-30 2001-09-18 Agere Systems Guardian Corp. Unequal error protection for digital broadcasting using channel classification

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6282168B1 (en) * 1997-06-19 2001-08-28 Qualcomm Inc. Bit interleaving for orthogonal frequency division multiplexing in the transmission of digital signals
US6292917B1 (en) * 1998-09-30 2001-09-18 Agere Systems Guardian Corp. Unequal error protection for digital broadcasting using channel classification
US6289000B1 (en) * 2000-05-19 2001-09-11 Intellon Corporation Frame control encoder/decoder for robust OFDM frame transmissions

Also Published As

Publication number Publication date
AU2002334634A1 (en) 2003-04-07
WO2003028269A2 (en) 2003-04-03

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