KR20080104880A - 직교 주파수 분할 다중화 시스템에서의 최대전력 대평균전력의 비를 줄이기 위한 방법 - Google Patents
직교 주파수 분할 다중화 시스템에서의 최대전력 대평균전력의 비를 줄이기 위한 방법 Download PDFInfo
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- KR20080104880A KR20080104880A KR1020070052284A KR20070052284A KR20080104880A KR 20080104880 A KR20080104880 A KR 20080104880A KR 1020070052284 A KR1020070052284 A KR 1020070052284A KR 20070052284 A KR20070052284 A KR 20070052284A KR 20080104880 A KR20080104880 A KR 20080104880A
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- KR
- South Korea
- Prior art keywords
- ofdm signal
- ofdm
- papr
- sequences
- slm
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- 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
- H04L27/2621—Reduction thereof using phase offsets between subcarriers
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- 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
- H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
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- 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)
- Transmitters (AREA)
Abstract
Description
Claims (10)
- OFDM 시스템에서의 PAPR(Peak-to-Average Power Ratio)을 줄이기 위한 방법에 있어서,
- 제 1항에 있어서,상기 선형 결합은 90°의 위상지연을 두어 이루어지는 것을 특징으로 하는 OFDM 시스템에서의 PAPR을 줄이기 위한 방법.
- OFDM 시스템에서의 PAPR을 줄이기 위한 방법에 있어서,(c) 상기 (b) 단계에 기초하여 개의 서로 다른 OFDM 신호 시퀀스를 생성하는 단계를 포함하며, 상기 생성된 OFDM 신호 시퀀스는 다음과 같이 표현되는 것을 특징으로 하는 OFDM 시스템에서의 PAPR을 줄이기 위한 방법:
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020070052284A KR100878720B1 (ko) | 2007-05-29 | 2007-05-29 | 직교 주파수 분할 다중화 시스템에서의 최대전력 대평균전력의 비를 줄이기 위한 방법 |
US12/307,127 US7929414B2 (en) | 2007-05-29 | 2007-09-03 | Modified SLM scheme with low complexity for PAPR reduction of OFDM systems |
PCT/KR2007/004239 WO2008146986A1 (en) | 2007-05-29 | 2007-09-03 | A modified slm scheme with low complexity for papr reduction of ofdm systems |
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KR1020070052284A KR100878720B1 (ko) | 2007-05-29 | 2007-05-29 | 직교 주파수 분할 다중화 시스템에서의 최대전력 대평균전력의 비를 줄이기 위한 방법 |
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KR20080104880A true KR20080104880A (ko) | 2008-12-03 |
KR100878720B1 KR100878720B1 (ko) | 2009-02-05 |
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KR1020070052284A KR100878720B1 (ko) | 2007-05-29 | 2007-05-29 | 직교 주파수 분할 다중화 시스템에서의 최대전력 대평균전력의 비를 줄이기 위한 방법 |
Country Status (3)
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US (1) | US7929414B2 (ko) |
KR (1) | KR100878720B1 (ko) |
WO (1) | WO2008146986A1 (ko) |
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US10103917B2 (en) | 2016-02-05 | 2018-10-16 | Maxlinear, Inc. | Peak to average power ratio reduction in multichannel digital front-ends (DFES) |
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KR20040056791A (ko) * | 2002-12-24 | 2004-07-01 | 삼성전자주식회사 | 직교주파수 분할다중화 통신시스템에서 피크전력 대평균전력 비를 감소시키기 위한 장치 및 방법 |
KR100899747B1 (ko) * | 2003-02-13 | 2009-05-27 | 삼성전자주식회사 | 직교주파수분할다중 시스템의 첨두대평균 전력비 저감을위한 장치 및 방법 |
KR100933115B1 (ko) * | 2003-09-09 | 2009-12-21 | 삼성전자주식회사 | 직교 주파수 분할 다중 통신 시스템에서 피크 전력 대 평균 전력비의 감소를 위한 장치 및 방법 |
WO2006060651A2 (en) * | 2004-12-02 | 2006-06-08 | New Jersey Institute Of Technology | Method and/or system for reduction of papr |
US7961591B2 (en) * | 2006-03-20 | 2011-06-14 | Fujitsu Limited | OFDM communication systems, transmitters and methods |
US20080285432A1 (en) * | 2007-05-18 | 2008-11-20 | Yeong-Luh Ueng | Method for Generating Candidates used in Turbo Coded Orthogonal Frequency-Division Multiplexing System with Selective Mapping Technique |
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- 2007-05-29 KR KR1020070052284A patent/KR100878720B1/ko active IP Right Grant
- 2007-09-03 US US12/307,127 patent/US7929414B2/en not_active Expired - Fee Related
- 2007-09-03 WO PCT/KR2007/004239 patent/WO2008146986A1/en active Application Filing
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CN110971559A (zh) * | 2019-12-18 | 2020-04-07 | 南京信息工程大学 | 一种基于动态控制因子降低ofdm-pon信号峰均功率比的调制解调方法 |
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CN114465861A (zh) * | 2022-01-11 | 2022-05-10 | 珠海中慧微电子有限公司 | 基于星座旋转的降低ofdm信号峰均比值的方法及装置 |
CN114465862A (zh) * | 2022-01-11 | 2022-05-10 | 珠海中慧微电子有限公司 | 一种降低ofdm信号峰均比值的方法、装置及存储介质 |
CN114465861B (zh) * | 2022-01-11 | 2023-06-02 | 珠海中慧微电子有限公司 | 基于星座旋转的降低ofdm信号峰均比值的方法及装置 |
CN114465862B (zh) * | 2022-01-11 | 2023-06-02 | 珠海中慧微电子有限公司 | 一种降低ofdm信号峰均比值的方法、装置及存储介质 |
Also Published As
Publication number | Publication date |
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US7929414B2 (en) | 2011-04-19 |
KR100878720B1 (ko) | 2009-02-05 |
WO2008146986A1 (en) | 2008-12-04 |
US20100110875A1 (en) | 2010-05-06 |
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