AU2001234881A1 - Method of differential coding and modulation - Google Patents

Method of differential coding and modulation

Info

Publication number
AU2001234881A1
AU2001234881A1 AU2001234881A AU3488101A AU2001234881A1 AU 2001234881 A1 AU2001234881 A1 AU 2001234881A1 AU 2001234881 A AU2001234881 A AU 2001234881A AU 3488101 A AU3488101 A AU 3488101A AU 2001234881 A1 AU2001234881 A1 AU 2001234881A1
Authority
AU
Australia
Prior art keywords
bits
differential coding
modulation
coding
sequence
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.)
Abandoned
Application number
AU2001234881A
Inventor
Ali S. Khayrallah
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.)
Ericsson Inc
Original Assignee
Ericsson Inc
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 Ericsson Inc filed Critical Ericsson Inc
Publication of AU2001234881A1 publication Critical patent/AU2001234881A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • 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
    • H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/066—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using differential modulation with several bits [NDPCM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver 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
    • H04L2001/0098—Unequal error protection

Abstract

A method of coding information for transmission over a communication channel involves differentially coding selected bits of an input sequence with respect to bits of a previous input symbol to generate a transmit sequence comprising a plurality of transmit symbols. The differential coding method can be used in combination with unequal error protection and interleaving to protect bits during transmission.
AU2001234881A 2000-02-07 2001-02-07 Method of differential coding and modulation Abandoned AU2001234881A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US18075700P 2000-02-07 2000-02-07
US60180757 2000-02-07
PCT/US2001/003888 WO2001058024A1 (en) 2000-02-07 2001-02-07 Method of differential coding and modulation

Publications (1)

Publication Number Publication Date
AU2001234881A1 true AU2001234881A1 (en) 2001-08-14

Family

ID=22661656

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001234881A Abandoned AU2001234881A1 (en) 2000-02-07 2001-02-07 Method of differential coding and modulation

Country Status (7)

Country Link
US (1) US20010033621A1 (en)
EP (1) EP1262027B1 (en)
KR (1) KR20020075908A (en)
AT (1) ATE303676T1 (en)
AU (1) AU2001234881A1 (en)
DE (1) DE60113068D1 (en)
WO (1) WO2001058024A1 (en)

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US6977974B1 (en) * 2000-11-20 2005-12-20 At&T Corp. De-modulation of MOK(M-ary orthogonal modulation)
US20020172294A1 (en) * 2001-04-02 2002-11-21 Jung-Fu Cheng Methods and systems for selective interleaving in retransmissions and iterative demodulation of modulated signals with different interleaving
JP3463752B2 (en) * 2001-07-25 2003-11-05 三菱電機株式会社 Acoustic encoding device, acoustic decoding device, acoustic encoding method, and acoustic decoding method
US7778242B1 (en) * 2001-11-27 2010-08-17 Alcatel Lucent Protecting content of a packet containing speech data using unequal error protection
US10129627B2 (en) * 2001-12-21 2018-11-13 One-E-Way, Inc. Wireless digital audio music system
US20060092873A1 (en) * 2004-10-29 2006-05-04 Telefonaktiebolaget Lm Ericsson ( Publ) Method for adaptive interleaving in a wireless communication system with feedback
US7508884B2 (en) * 2005-03-24 2009-03-24 Harris Corporation System and method for communicating data using constant amplitude equalized waveform
US8194750B2 (en) * 2006-10-16 2012-06-05 Samsung Electronics Co., Ltd. System and method for digital communication having a circulant bit interleaver for equal error protection (EEP) and unequal error protection (UEP)
US20110116515A1 (en) * 2009-11-16 2011-05-19 Nxp B.V. System and method for demodulating and decoding a differentially encoded coded orthogonal frequency division multiplexing modulation code using two-dimensional code blocks
WO2012112872A1 (en) 2011-02-17 2012-08-23 Massachusetts Institute Of Technology Rateless and rated coding using spinal codes
US8711013B2 (en) * 2012-01-17 2014-04-29 Lsi Corporation Coding circuitry for difference-based data transformation
US9160399B2 (en) 2012-05-24 2015-10-13 Massachusetts Institute Of Technology System and apparatus for decoding tree-based messages
JP5944811B2 (en) * 2012-10-30 2016-07-05 日本電信電話株式会社 Digital coherent optical transmission method, transmitter, and receiver
EP2763321B1 (en) * 2013-02-05 2020-04-08 Semtech Corporation Low power long range transmitter
US9270412B2 (en) * 2013-06-26 2016-02-23 Massachusetts Institute Of Technology Permute codes, iterative ensembles, graphical hash codes, and puncturing optimization
US9426082B2 (en) * 2014-01-03 2016-08-23 Qualcomm Incorporated Low-voltage differential signaling or 2-wire differential link with symbol transition clocking
KR101849273B1 (en) * 2016-04-29 2018-04-17 광주과학기술원 Low frequency ultrasonic communication system, low frequency ultrasonic communication method, low frequency ultrasonic sending apparatus, and low frequency ultrasonic receiving apparatus
EP3337070B1 (en) * 2016-12-16 2019-10-23 Nxp B.V. Demodulation and decoding

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879728A (en) * 1989-01-31 1989-11-07 American Telephone And Telegraph Company, At&T Bell Laboratories DPSK carrier acquisition and tracking arrangement
CA2052906A1 (en) * 1990-10-09 1992-04-10 Antoine Chouly System for modulating/demodulating digital signals transmitted with encoded modulation
US5416804A (en) * 1991-08-21 1995-05-16 U.S. Philips Corporation Digital signal decoder using concatenated codes
US5289501A (en) * 1991-11-26 1994-02-22 At&T Bell Laboratories Coded modulation with unequal error protection for fading channels
US5673291A (en) * 1994-09-14 1997-09-30 Ericsson Inc. Simultaneous demodulation and decoding of a digitally modulated radio signal using known symbols
FR2741215B1 (en) * 1995-11-14 1998-01-23 Matra Communication METHOD FOR TRANSMITTING A SEQUENCE OF INFORMATION BITS WITH SELECTIVE PROTECTION AGAINST TRANSMISSION ERRORS, CODING AND CORRECTION PROCESSES WHICH CAN BE IMPLEMENTED IN SUCH A TRANSMISSION METHOD
US5757821A (en) * 1996-07-22 1998-05-26 Telefonaktiebolaget Lm Ericsson Method and apparatus for detecting communication signals having unequal error protection
US6072770A (en) * 1997-03-04 2000-06-06 At&T Corporation Method and system providing unified DPSK-PSK signalling for CDMA-based satellite communications
KR19990012821A (en) * 1997-07-31 1999-02-25 홍성용 Electromagnetic wave absorber composition and its manufacturing method, electromagnetic wave absorbing coating composition, its manufacturing method and its coating method
US6535497B1 (en) * 1998-05-11 2003-03-18 Telefonaktiebolaget Lm Ericsson (Publ) Methods and systems for multiplexing of multiple users for enhanced capacity radiocommunications
US6574235B1 (en) * 1999-08-12 2003-06-03 Ericsson Inc. Methods of receiving co-channel signals by channel separation and successive cancellation and related receivers

Also Published As

Publication number Publication date
DE60113068D1 (en) 2005-10-06
WO2001058024A1 (en) 2001-08-09
ATE303676T1 (en) 2005-09-15
EP1262027B1 (en) 2005-08-31
KR20020075908A (en) 2002-10-07
EP1262027A1 (en) 2002-12-04
US20010033621A1 (en) 2001-10-25

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