DE60040432D1 - Verringerung des Verhältnisses von Spitzen- zu Durchschnittsleistung sowie von der Komplexität des Entzerrers in Mehrträgerübertragungssystemen - Google Patents
Verringerung des Verhältnisses von Spitzen- zu Durchschnittsleistung sowie von der Komplexität des Entzerrers in MehrträgerübertragungssystemenInfo
- Publication number
- DE60040432D1 DE60040432D1 DE60040432T DE60040432T DE60040432D1 DE 60040432 D1 DE60040432 D1 DE 60040432D1 DE 60040432 T DE60040432 T DE 60040432T DE 60040432 T DE60040432 T DE 60040432T DE 60040432 D1 DE60040432 D1 DE 60040432D1
- Authority
- DE
- Germany
- Prior art keywords
- equalizer
- complexity
- peak
- reducing
- ratio
- 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.)
- Expired - Fee Related
Links
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
- H04L1/0071—Use of interleaving
-
- 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
-
- 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
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
-
- 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
- H04L27/2649—Demodulators
- H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
- H04L27/26522—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators using partial FFTs
-
- 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
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Error Detection And Correction (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Transmitters (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1999-0018852A KR100455278B1 (ko) | 1999-05-25 | 1999-05-25 | 신호 전송 방법 및 장치 |
KR1020000007875A KR100363254B1 (ko) | 2000-02-18 | 2000-02-18 | 직교 주파수 분할 다중 신호의 송/수신 장치 및 방법 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60040432D1 true DE60040432D1 (de) | 2008-11-20 |
Family
ID=26635233
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60040432T Expired - Fee Related DE60040432D1 (de) | 1999-05-25 | 2000-05-25 | Verringerung des Verhältnisses von Spitzen- zu Durchschnittsleistung sowie von der Komplexität des Entzerrers in Mehrträgerübertragungssystemen |
DE60042180T Expired - Fee Related DE60042180D1 (de) | 1999-05-25 | 2000-05-25 | Vorrichtung und Verfahren zur Übertragung und zum Empfang eine OFDM-Signals |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60042180T Expired - Fee Related DE60042180D1 (de) | 1999-05-25 | 2000-05-25 | Vorrichtung und Verfahren zur Übertragung und zum Empfang eine OFDM-Signals |
Country Status (4)
Country | Link |
---|---|
US (1) | US6952394B1 (de) |
EP (2) | EP1758329B1 (de) |
JP (1) | JP2001060936A (de) |
DE (2) | DE60040432D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105095232A (zh) * | 2014-04-29 | 2015-11-25 | 联想(北京)有限公司 | 一种信息处理方法及电子设备 |
Families Citing this family (44)
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US6611551B1 (en) * | 1999-01-21 | 2003-08-26 | Cisco Technology, Inc. | OFDM channel identification |
US7646702B2 (en) * | 2000-11-17 | 2010-01-12 | Panasonic Corporation | OFDM communication apparatus |
US6944206B1 (en) * | 2000-11-20 | 2005-09-13 | Ericsson Inc. | Rate one coding and decoding methods and systems |
KR100375350B1 (ko) | 2001-03-26 | 2003-03-08 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속에 기반한 데이타 통신 장치및 방법 |
JP3396815B2 (ja) * | 2001-06-20 | 2003-04-14 | 富士通株式会社 | データ伝送方法及びデータ伝送装置 |
US6990059B1 (en) | 2001-09-05 | 2006-01-24 | Cisco Technology, Inc. | Interference mitigation in a wireless communication system |
US7855948B2 (en) | 2001-09-05 | 2010-12-21 | Cisco Technology, Inc. | Interference mitigation in a wireless communication system |
US7224742B2 (en) * | 2001-12-14 | 2007-05-29 | Samsung Electronics Co., Ltd. | Apparatus and method for reducing the peak-to-average power ratio of OFDM/OFDMA signals |
KR100866181B1 (ko) * | 2002-07-30 | 2008-10-30 | 삼성전자주식회사 | 통신 시스템에서 신호 송수신 방법 및 장치 |
BR0215922A (pt) * | 2002-11-07 | 2005-08-09 | Ericsson Telefon Ab L M | Método para comunicar quadros de dados digitais por sinais modulados em ofdm, transmissor, e, receptor |
CN100589475C (zh) * | 2003-04-21 | 2010-02-10 | Rgb网络有限公司 | 有线电视信号的宽频带多通道正交振幅调制 |
US7289425B2 (en) * | 2003-06-20 | 2007-10-30 | The Aerospace Corporation | Parallel orthogonal frequency division multiplexed communication system |
CN101065963B (zh) | 2003-08-29 | 2010-09-15 | Rgb网络有限公司 | 提供低延迟类vcr效果和节目改变的视频多路复用器系统 |
US7606138B2 (en) * | 2003-09-29 | 2009-10-20 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry, Through The Communications Research Centre Canada | Multi-symbol encapsulated OFDM system |
US7366243B1 (en) * | 2003-10-29 | 2008-04-29 | Itt Manufacturing Enterprises, Inc. | Methods and apparatus for transmitting non-contiguous spread spectrum signals for communications and navigation |
KR20050081244A (ko) * | 2004-02-12 | 2005-08-18 | 삼성전자주식회사 | 직교주파수분할다중화 기반의 통신 시스템을 위한 시간동기화 방법 |
US7362812B1 (en) * | 2004-05-06 | 2008-04-22 | Advanced Micro Devices, Inc. | Channel tracking using step size based on norm-1 based errors across multiple OFDM symbols |
US7342978B2 (en) * | 2004-06-02 | 2008-03-11 | Industrial Technology Research Institute | Method and apparatus for PAPR reduction of an OFDM signal |
KR20060059221A (ko) * | 2004-11-26 | 2006-06-01 | 삼성전자주식회사 | 멀티캐리어 통신 시스템에서 피크대 평균 전력비 감소 장치및 방법 |
US7489755B2 (en) * | 2005-02-09 | 2009-02-10 | Motorola, Inc. | Method and apparatus for transmission and reception of data |
US7894818B2 (en) * | 2005-06-15 | 2011-02-22 | Samsung Electronics Co., Ltd. | Apparatus and method for multiplexing broadcast and unicast traffic in a multi-carrier wireless network |
US20070004465A1 (en) * | 2005-06-29 | 2007-01-04 | Aris Papasakellariou | Pilot Channel Design for Communication Systems |
KR101005617B1 (ko) * | 2005-12-08 | 2011-01-05 | 한국전자통신연구원 | 다중 안테나를 구비한 직교주파수 분할 다중 접속 시스템의수신 장치 및 방법 |
WO2007112489A1 (en) * | 2006-04-03 | 2007-10-11 | National Ict Australia Limited | Channel estimation for rapid dispersive fading channels |
US7675983B2 (en) * | 2006-04-14 | 2010-03-09 | Freescale Semiconductor, Inc. | Mitigation of DC distortion in OFDM receivers |
KR100962114B1 (ko) * | 2006-11-23 | 2010-06-10 | 삼성전자주식회사 | 광대역 무선통신시스템에서 채널 추정 장치 및 방법 |
EP2127169A1 (de) * | 2007-01-19 | 2009-12-02 | Thomson Licensing | Interpolationsverfahren für ein ofdm-system und kanalschätzverfahren und vorrichtung |
KR100969771B1 (ko) * | 2007-01-31 | 2010-07-13 | 삼성전자주식회사 | 통신 시스템에서 신호 송수신 장치 및 방법 |
JP4342565B2 (ja) * | 2007-03-08 | 2009-10-14 | 株式会社東芝 | 送信機および受信機 |
DE112008001376T5 (de) * | 2007-05-28 | 2010-04-08 | Advantest Corporation | Messgerät und Programm |
US8311137B1 (en) | 2008-01-24 | 2012-11-13 | Marvell International Ltd. | Method for DC offset removal in OFDM systems |
JPWO2009133742A1 (ja) * | 2008-04-30 | 2011-09-01 | 日本電気株式会社 | 無線通信システム、無線通信装置、無線通信方法、プログラム |
US8428538B2 (en) * | 2008-07-09 | 2013-04-23 | Intel Mobile Communications GmbH | Channel estimator |
US8830926B2 (en) * | 2008-10-27 | 2014-09-09 | Nokia Siemens Networks Oy | Method for network co-ordination in a mobile communications system and apparatus thereof |
CN101437010B (zh) * | 2008-12-03 | 2012-10-03 | 华为终端有限公司 | 一种正交频分复用系统信道估计方法和装置 |
CN102685065A (zh) * | 2012-06-20 | 2012-09-19 | 能士智能港四川科技发展有限公司 | 光正交频分复用oofdm收发器的信号快速处理方法 |
US9264924B2 (en) * | 2013-03-07 | 2016-02-16 | Cable Television Laboratories, Inc. | Signal noise estimation |
US20140376418A1 (en) * | 2013-06-25 | 2014-12-25 | Raja Banerjea | Enhanced modulator and demodulator |
WO2017201467A1 (en) * | 2016-05-20 | 2017-11-23 | Cohere Technologies | Iterative channel estimation and equalization with superimposed reference signals |
US10135649B2 (en) * | 2016-09-02 | 2018-11-20 | Marvell World Trade Ltd. | Systems and methods for performing multi-level coding in a discrete multitone modulation communication system |
KR20180064817A (ko) | 2016-12-06 | 2018-06-15 | 삼성전자주식회사 | 무선 통신 시스템 및 이의 동작 방법 |
KR102590959B1 (ko) * | 2019-02-25 | 2023-10-18 | 주식회사 엘지화학 | 광학 디바이스 |
US11362694B1 (en) * | 2021-05-05 | 2022-06-14 | Qualcomm Incorporated | Signal reconstruction for non-linearly distorted signal |
CN114866391B (zh) * | 2022-04-29 | 2023-08-08 | 西安交通大学 | Siso-ofdm系统及其基于端到端神经网络的信号传输方法 |
Family Cites Families (18)
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JP2904986B2 (ja) | 1992-01-31 | 1999-06-14 | 日本放送協会 | 直交周波数分割多重ディジタル信号送信装置および受信装置 |
GB9218874D0 (en) | 1992-09-07 | 1992-10-21 | British Broadcasting Corp | Improvements relating to the transmission of frequency division multiplex signals |
US5623513A (en) | 1993-12-13 | 1997-04-22 | Amati Communications Corporation | Mitigating clipping and quantization effects in digital transmission systems |
EP0982908B1 (de) | 1994-05-09 | 2005-03-09 | Victor Company Of Japan, Limited | Einstellung eines Referenzunterträgers bei Mehrträgerübertragung |
FR2726417A1 (fr) * | 1994-10-26 | 1996-05-03 | Philips Electronique Lab | Systeme de transmission et recepteur de signaux a repartition multiplexee de frequences orthogonales muni d'un dispositif de synchronisation de frequences |
US5774450A (en) | 1995-01-10 | 1998-06-30 | Matsushita Electric Industrial Co., Ltd. | Method of transmitting orthogonal frequency division multiplexing signal and receiver thereof |
JP3145003B2 (ja) | 1995-03-23 | 2001-03-12 | 株式会社東芝 | 直交周波数分割多重伝送方式とその送信装置および受信装置 |
JP3521016B2 (ja) | 1995-03-27 | 2004-04-19 | 松下電器産業株式会社 | 直交周波数分割多重信号の受信方法および受信装置 |
US5521908A (en) * | 1995-04-20 | 1996-05-28 | Tellabs Operations Inc. | Method and apparatus for providing reduced complexity echo cancellation in a multicarrier communication system |
US5914933A (en) * | 1996-03-08 | 1999-06-22 | Lucent Technologies Inc. | Clustered OFDM communication system |
US5862182A (en) | 1996-07-30 | 1999-01-19 | Lucent Technologies Inc. | OFDM digital communications system using complementary codes |
JPH10190608A (ja) | 1996-12-19 | 1998-07-21 | Lucent Technol Inc | 通信方法 |
US5912876A (en) | 1997-01-15 | 1999-06-15 | Ericsson, Inc. | Method and apparatus for channel estimation |
US6175550B1 (en) | 1997-04-01 | 2001-01-16 | Lucent Technologies, Inc. | Orthogonal frequency division multiplexing system with dynamically scalable operating parameters and method thereof |
US5867478A (en) | 1997-06-20 | 1999-02-02 | Motorola, Inc. | Synchronous coherent orthogonal frequency division multiplexing system, method, software and device |
KR100228683B1 (ko) | 1997-07-26 | 1999-11-01 | 윤종용 | Ofdm수신기의 채널추정방법 및 장치 |
EP1068704B1 (de) * | 1998-04-03 | 2012-06-13 | Tellabs Operations, Inc. | Filter zum verkürzen der stossantwort, mit zusätzlichen, spektralen bedingungen, für mehrträgerübertragung |
US6631175B2 (en) * | 1998-04-03 | 2003-10-07 | Tellabs Operations, Inc. | Spectrally constrained impulse shortening filter for a discrete multi-tone receiver |
-
2000
- 2000-05-24 US US09/576,767 patent/US6952394B1/en not_active Expired - Lifetime
- 2000-05-25 DE DE60040432T patent/DE60040432D1/de not_active Expired - Fee Related
- 2000-05-25 EP EP20060124423 patent/EP1758329B1/de not_active Expired - Lifetime
- 2000-05-25 JP JP2000193531A patent/JP2001060936A/ja not_active Withdrawn
- 2000-05-25 EP EP20000304438 patent/EP1056250B1/de not_active Expired - Lifetime
- 2000-05-25 DE DE60042180T patent/DE60042180D1/de not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105095232A (zh) * | 2014-04-29 | 2015-11-25 | 联想(北京)有限公司 | 一种信息处理方法及电子设备 |
Also Published As
Publication number | Publication date |
---|---|
EP1056250A3 (de) | 2002-10-16 |
EP1758329B1 (de) | 2009-05-06 |
JP2001060936A (ja) | 2001-03-06 |
EP1758329A1 (de) | 2007-02-28 |
EP1056250A2 (de) | 2000-11-29 |
DE60042180D1 (de) | 2009-06-18 |
EP1056250B1 (de) | 2008-10-08 |
US6952394B1 (en) | 2005-10-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |