IT1273695B - Metodo e circuiti per la trasmissione e la ricezione di segnali numerici nel quale si riduce la potenza di picco del segnale filtrato trasmesso compatibili con tecniche di codifica note - Google Patents

Metodo e circuiti per la trasmissione e la ricezione di segnali numerici nel quale si riduce la potenza di picco del segnale filtrato trasmesso compatibili con tecniche di codifica note

Info

Publication number
IT1273695B
IT1273695B ITMI941626A ITMI941626A IT1273695B IT 1273695 B IT1273695 B IT 1273695B IT MI941626 A ITMI941626 A IT MI941626A IT MI941626 A ITMI941626 A IT MI941626A IT 1273695 B IT1273695 B IT 1273695B
Authority
IT
Italy
Prior art keywords
transmission
filtered signal
peak power
reception
notes
Prior art date
Application number
ITMI941626A
Other languages
English (en)
Inventor
Andrea Sandri
Arnaldo Spalvieri
Franco Guglielmi
Original Assignee
Alcatel Italia
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 Alcatel Italia filed Critical Alcatel Italia
Priority to ITMI941626A priority Critical patent/IT1273695B/it
Publication of ITMI941626A0 publication Critical patent/ITMI941626A0/it
Priority to NO952729A priority patent/NO952729L/no
Priority to EP95111571A priority patent/EP0703689A1/en
Priority to US08/506,929 priority patent/US5608760A/en
Priority to JP7193913A priority patent/JPH08195782A/ja
Publication of ITMI941626A1 publication Critical patent/ITMI941626A1/it
Application granted granted Critical
Publication of IT1273695B publication Critical patent/IT1273695B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3411—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Dc Digital Transmission (AREA)
  • Transmitters (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

La presente invenzione riguarda un metodo per migliorare l'efficienza di un collegamento numerico, ad es. a microonde- il trovato si caratterizza per l'utilizzo di una codifica in trasmissione e una decodifica in ricezione, finalizzate alla riduzione della potenza di picco del segnale filtrato presente all'ingresso dell'amplificatore di potenza del trasmettitore, tale codifica essendo compatibile con altre codifiche "tradizionali" finalizzate all'incremento della distanza minima tra le sequenze di punti trasmessi.
ITMI941626A 1994-07-28 1994-07-28 Metodo e circuiti per la trasmissione e la ricezione di segnali numerici nel quale si riduce la potenza di picco del segnale filtrato trasmesso compatibili con tecniche di codifica note IT1273695B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITMI941626A IT1273695B (it) 1994-07-28 1994-07-28 Metodo e circuiti per la trasmissione e la ricezione di segnali numerici nel quale si riduce la potenza di picco del segnale filtrato trasmesso compatibili con tecniche di codifica note
NO952729A NO952729L (no) 1994-07-28 1995-07-10 Fremgangsmåte og krets for å sende og motta signaler
EP95111571A EP0703689A1 (en) 1994-07-28 1995-07-22 Method and system for transmitting and receiving digital signals, in which the peak power of the transmitted filtered signal is reduced
US08/506,929 US5608760A (en) 1994-07-28 1995-07-26 Method and circuits for the transmission and reception of numeric signals, in which the peak power of the filtered signal transmitted is reduced, compatible with conventional coding techniques
JP7193913A JPH08195782A (ja) 1994-07-28 1995-07-28 従来のコード化技術と両立し、フィルタ処理され送信された信号のピーク電力を減少する数値信号の送信および受信のための回路および方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI941626A IT1273695B (it) 1994-07-28 1994-07-28 Metodo e circuiti per la trasmissione e la ricezione di segnali numerici nel quale si riduce la potenza di picco del segnale filtrato trasmesso compatibili con tecniche di codifica note

Publications (3)

Publication Number Publication Date
ITMI941626A0 ITMI941626A0 (it) 1994-07-28
ITMI941626A1 ITMI941626A1 (it) 1996-01-28
IT1273695B true IT1273695B (it) 1997-07-09

Family

ID=11369390

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI941626A IT1273695B (it) 1994-07-28 1994-07-28 Metodo e circuiti per la trasmissione e la ricezione di segnali numerici nel quale si riduce la potenza di picco del segnale filtrato trasmesso compatibili con tecniche di codifica note

Country Status (5)

Country Link
US (1) US5608760A (it)
EP (1) EP0703689A1 (it)
JP (1) JPH08195782A (it)
IT (1) IT1273695B (it)
NO (1) NO952729L (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69636981T2 (de) * 1995-11-29 2007-12-06 Koninklijke Philips Electronics N.V. Übertragungssystem für ein nichtlineares übertragungsmedium
DE19748880C1 (de) * 1997-11-06 1999-05-12 Deutsche Telekom Ag Verfahren und Schaltungsanordnung zur verbesserten Datenübertragung
US6317495B1 (en) * 1997-12-19 2001-11-13 Wm. Marsh Rice University Spectral optimization and joint signaling techniques with multi-line separation for communication in the presence of crosstalk
US6163570A (en) 1998-05-11 2000-12-19 Conexant Systems, Inc. Methods and apparatus for verifying transmit power levels in a signal point limited transmission system
AUPQ820000A0 (en) * 2000-06-20 2000-07-13 Berangi, R. Peak power reduction schemes for multi-code cdma and critically sampled complex gaussian signals
WO2001099279A1 (en) * 2000-06-20 2001-12-27 Prescient Networks Pty Ltd Signal peak reduction circuit for non-constant envelope modulation signals
US6661355B2 (en) * 2000-12-27 2003-12-09 Apple Computer, Inc. Methods and apparatus for constant-weight encoding & decoding
WO2002071715A1 (fr) * 2001-03-06 2002-09-12 Matsushita Electric Industrial Co., Ltd. Appareil et procede de traitement de signal
US7170952B2 (en) 2001-07-02 2007-01-30 Powerwave Technologies, Inc. System and method for post filtering peak power reduction in communications systems
US7095798B2 (en) 2001-08-02 2006-08-22 Powerwave Technologies, Inc. System and method for post filtering peak power reduction in multi-carrier communications systems
JP4883582B2 (ja) * 2006-11-22 2012-02-22 国立大学法人横浜国立大学 符号化変調システムおよび受信装置ならびに符号化変調方法および復号方法
JP4911521B2 (ja) * 2007-08-23 2012-04-04 国立大学法人横浜国立大学 シンボル挿入によるピーク電力低減および復号誤り率改善方法ならびに無線送受信装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4959842A (en) * 1988-04-13 1990-09-25 Codex Corporation Signal constellations
US5159610A (en) * 1989-05-12 1992-10-27 Codex Corporation Trellis precoding for modulation systems
US5095497A (en) * 1989-10-02 1992-03-10 At & T Bell Laboratories Technique for achieving the full coding gain of encoded digital signals
CA2106844C (en) * 1991-03-28 1998-12-01 John David Brownlie Tcm scheme with fractional bit rates, framing signals and constellation shaping
IT1259012B (it) * 1992-07-27 1996-03-11 Alcatel Italia Metodo e circuiti per la riduzione della potenza di picco del segnale filtrato trasmesso in un collegamento di tipo numerico

Also Published As

Publication number Publication date
ITMI941626A1 (it) 1996-01-28
ITMI941626A0 (it) 1994-07-28
NO952729L (no) 1996-01-29
EP0703689A1 (en) 1996-03-27
JPH08195782A (ja) 1996-07-30
NO952729D0 (no) 1995-07-10
US5608760A (en) 1997-03-04

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0001 Granted