IT1318964B1 - Metodo per ridurre il rapporto tra potenza di picco e potenza media diun segnale multiportante generato da traformata di fourier in sistemi - Google Patents

Metodo per ridurre il rapporto tra potenza di picco e potenza media diun segnale multiportante generato da traformata di fourier in sistemi

Info

Publication number
IT1318964B1
IT1318964B1 IT2000MI002143A ITMI20002143A IT1318964B1 IT 1318964 B1 IT1318964 B1 IT 1318964B1 IT 2000MI002143 A IT2000MI002143 A IT 2000MI002143A IT MI20002143 A ITMI20002143 A IT MI20002143A IT 1318964 B1 IT1318964 B1 IT 1318964B1
Authority
IT
Italy
Prior art keywords
multiportant
relationship
systems
reduce
signal generated
Prior art date
Application number
IT2000MI002143A
Other languages
English (en)
Inventor
Angelo Leva
Arnaldo Spalvieri
Domenico Farnese
Giovanni Paltenghi
Original Assignee
Cit Alcatel
Cefriel Consorzio Per La Forma
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 Cit Alcatel, Cefriel Consorzio Per La Forma filed Critical Cit Alcatel
Priority to IT2000MI002143A priority Critical patent/IT1318964B1/it
Publication of ITMI20002143A0 publication Critical patent/ITMI20002143A0/it
Priority to EP01402407A priority patent/EP1195962A3/en
Priority to US09/962,145 priority patent/US7545869B2/en
Priority to NO20014801A priority patent/NO20014801L/no
Publication of ITMI20002143A1 publication Critical patent/ITMI20002143A1/it
Application granted granted Critical
Publication of IT1318964B1 publication Critical patent/IT1318964B1/it

Links

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
    • H04L27/2614—Peak power aspects
    • H04L27/2623—Reduction thereof by clipping
    • H04L27/2624—Reduction thereof by clipping by soft clipping
    • 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
    • H04L27/2614—Peak power aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
IT2000MI002143A 2000-10-04 2000-10-04 Metodo per ridurre il rapporto tra potenza di picco e potenza media diun segnale multiportante generato da traformata di fourier in sistemi IT1318964B1 (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT2000MI002143A IT1318964B1 (it) 2000-10-04 2000-10-04 Metodo per ridurre il rapporto tra potenza di picco e potenza media diun segnale multiportante generato da traformata di fourier in sistemi
EP01402407A EP1195962A3 (en) 2000-10-04 2001-09-19 Method for reducing the peak-to-average power ratio of a multicarrier signal
US09/962,145 US7545869B2 (en) 2000-10-04 2001-09-26 Method of reducing the peak-to-average power ratio of a fourier transform-generated multi-carrier signal in transmission systems
NO20014801A NO20014801L (no) 2000-10-04 2001-10-03 Fremgangsmåte for reduksjon av topp/middel-effektforholdet for et Fourier-transformasjonsgenerert multib¶rebölgesignal ioverföringssystemer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2000MI002143A IT1318964B1 (it) 2000-10-04 2000-10-04 Metodo per ridurre il rapporto tra potenza di picco e potenza media diun segnale multiportante generato da traformata di fourier in sistemi

Publications (3)

Publication Number Publication Date
ITMI20002143A0 ITMI20002143A0 (it) 2000-10-04
ITMI20002143A1 ITMI20002143A1 (it) 2002-04-04
IT1318964B1 true IT1318964B1 (it) 2003-09-19

Family

ID=11445903

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2000MI002143A IT1318964B1 (it) 2000-10-04 2000-10-04 Metodo per ridurre il rapporto tra potenza di picco e potenza media diun segnale multiportante generato da traformata di fourier in sistemi

Country Status (4)

Country Link
US (1) US7545869B2 (it)
EP (1) EP1195962A3 (it)
IT (1) IT1318964B1 (it)
NO (1) NO20014801L (it)

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US7418043B2 (en) * 2000-07-19 2008-08-26 Lot 41 Acquisition Foundation, Llc Software adaptable high performance multicarrier transmission protocol
US8670390B2 (en) 2000-11-22 2014-03-11 Genghiscomm Holdings, LLC Cooperative beam-forming in wireless networks
GB2372917A (en) 2001-03-02 2002-09-04 Mitel Corp Discrete multi-tone peak reduction
US7127005B2 (en) 2001-03-23 2006-10-24 James Stuart Wight Computational circuits and methods for processing modulated signals having non-constant envelopes
US20020159532A1 (en) * 2001-03-23 2002-10-31 Icefyre Semiconductor Corporation Computational circuits and methods for signal deconstruction/reconstruction in wireless transceivers
US10931338B2 (en) 2001-04-26 2021-02-23 Genghiscomm Holdings, LLC Coordinated multipoint systems
US9819449B2 (en) 2002-05-14 2017-11-14 Genghiscomm Holdings, LLC Cooperative subspace demultiplexing in content delivery networks
US10355720B2 (en) 2001-04-26 2019-07-16 Genghiscomm Holdings, LLC Distributed software-defined radio
US10200227B2 (en) 2002-05-14 2019-02-05 Genghiscomm Holdings, LLC Pre-coding in multi-user MIMO
US10142082B1 (en) 2002-05-14 2018-11-27 Genghiscomm Holdings, LLC Pre-coding in OFDM
US10644916B1 (en) 2002-05-14 2020-05-05 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
US9628231B2 (en) 2002-05-14 2017-04-18 Genghiscomm Holdings, LLC Spreading and precoding in OFDM
JP3796204B2 (ja) 2002-07-31 2006-07-12 松下電器産業株式会社 マルチキャリア送信信号のピーク抑圧方法およびピーク抑圧機能をもつマルチキャリア送信信号生成回路
US6925128B2 (en) * 2002-10-31 2005-08-02 Motorola, Inc. Method and apparatus for reducing a peak-to-average power ratio in an orthogonal frequency division multiplex signal
KR100605826B1 (ko) * 2002-11-18 2006-07-31 삼성전자주식회사 높은 첨두전력대 평균전력비를 가지는 전력증폭기의 효율개선 장치 및 방법
JP4116623B2 (ja) * 2002-12-02 2008-07-09 株式会社エヌ・ティ・ティ・ドコモ 直交周波数マルチキャリア送信装置及び送信方法
DE60312811T2 (de) * 2003-03-11 2007-08-16 Alcatel Lucent Verfahren und Vorrichtung zur Verringerung des Verhältnisses von Spitzen- zu Durchschnittsleistung
GB2401516A (en) * 2003-04-17 2004-11-10 Univ Southampton Peak-to-average power ratio reduction by subtracting shaped pulses from a baseband signal
US7580476B2 (en) * 2003-06-26 2009-08-25 Northrop Grumman Corporation Communication system and method for improving efficiency and linearity
US11431386B1 (en) 2004-08-02 2022-08-30 Genghiscomm Holdings, LLC Transmit pre-coding
US11552737B1 (en) 2004-08-02 2023-01-10 Genghiscomm Holdings, LLC Cooperative MIMO
US11184037B1 (en) 2004-08-02 2021-11-23 Genghiscomm Holdings, LLC Demodulating and decoding carrier interferometry signals
US20070206703A1 (en) * 2005-11-21 2007-09-06 Corredoura Paul L System and method for reducing dynamic range of modulated signals without increasing out-of-band power
US7742535B2 (en) * 2005-12-21 2010-06-22 Powerwave Technologies, Inc. Crest factor reduction system and method for OFDM transmission systems using selective sub-carrier degradation
JP4750592B2 (ja) * 2006-03-17 2011-08-17 富士通株式会社 ピーク抑圧方法、ピーク抑圧装置、無線送信装置
US7995975B2 (en) 2006-12-21 2011-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for signal peak-to-average ratio reduction
US8363749B2 (en) * 2008-05-05 2013-01-29 Industrial Technology Research Institute Peak to average power ratio reduction
US8885736B2 (en) * 2008-06-13 2014-11-11 Ikanos Communications, Inc. Systems and methods for positioning and messaging of reserved tones for peak-to-average ratio (PAR) reduction in DSL systems
US8213536B2 (en) * 2008-06-13 2012-07-03 Ikanos Communications, Inc. Low complexity systems and methods for peak-to-average ratio (PAR) reduction using reserved tones
US8275067B2 (en) * 2008-06-13 2012-09-25 Ikanos Communications, Inc. Adaptive turbo peak mitigation for peak-to-average ratio (PAR) reduction using reserved tones
US12224860B1 (en) 2014-01-30 2025-02-11 Genghiscomm Holdings, LLC Linear coding in decentralized networks
US10243773B1 (en) 2017-06-30 2019-03-26 Genghiscomm Holdings, LLC Efficient peak-to-average-power reduction for OFDM and MIMO-OFDM
US10637705B1 (en) 2017-05-25 2020-04-28 Genghiscomm Holdings, LLC Peak-to-average-power reduction for OFDM multiple access
US11917604B2 (en) 2019-01-25 2024-02-27 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
US11343823B2 (en) 2020-08-16 2022-05-24 Tybalt, Llc Orthogonal multiple access and non-orthogonal multiple access
US12206535B1 (en) 2018-06-17 2025-01-21 Tybalt, Llc Artificial neural networks in wireless communication systems
EP3915236A4 (en) 2019-01-25 2023-05-24 Genghiscomm Holdings, LLC ORTHOGONAL MULTI-ACCESS AND NON-ORTHOGONAL MULTI-ACCESS
WO2020242898A1 (en) 2019-05-26 2020-12-03 Genghiscomm Holdings, LLC Non-orthogonal multiple access

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US5835536A (en) * 1995-02-02 1998-11-10 Motorola, Inc. Method and apparatus for reducing peak-to-average requirements in multi-tone communication circuits
JP3900670B2 (ja) * 1998-04-17 2007-04-04 ソニー株式会社 通信装置
US6512797B1 (en) * 1998-04-20 2003-01-28 The Board Of Trustees Of The Leland Stanford Junior University Peak to average power ratio reduction
US6757299B1 (en) * 1998-09-24 2004-06-29 Silicon Automation Systems Limited Peak power to average power ratio reduction in multicarrier communication systems using error-correcting code
US6674810B1 (en) * 1999-05-27 2004-01-06 3Com Corporation Method and apparatus for reducing peak-to-average power ratio in a discrete multi-tone signal
CA2291493A1 (en) * 1999-12-03 2001-06-03 Catena Technologies Canada, Inc. Peak to average power ratio reduction in communication systems

Also Published As

Publication number Publication date
EP1195962A2 (en) 2002-04-10
ITMI20002143A1 (it) 2002-04-04
ITMI20002143A0 (it) 2000-10-04
US20020061068A1 (en) 2002-05-23
NO20014801L (no) 2002-04-05
US7545869B2 (en) 2009-06-09
EP1195962A3 (en) 2005-06-15
NO20014801D0 (no) 2001-10-03

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