KR20100011639A - 3차원 신호성상도를 사용하는 직교주파수분할다중화 장치및 방법 - Google Patents
3차원 신호성상도를 사용하는 직교주파수분할다중화 장치및 방법 Download PDFInfo
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- KR20100011639A KR20100011639A KR1020080072938A KR20080072938A KR20100011639A KR 20100011639 A KR20100011639 A KR 20100011639A KR 1020080072938 A KR1020080072938 A KR 1020080072938A KR 20080072938 A KR20080072938 A KR 20080072938A KR 20100011639 A KR20100011639 A KR 20100011639A
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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
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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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- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims (9)
- 직렬 입력 신호를 N 개로 병렬화한 후 3차원 구면에 분포하는 신호점들로 구성된 신호성상도의 N 개의 3차원 좌표값으로 상기 병렬화된 입력 신호를 매핑하는 신호매핑부;매핑된 상기 N 개의 3차원 좌표값을 기초로 2차원행렬을 생성하는 전환부; 및상기 2차원 행렬로 전환된 상기 N 개의 3차원 좌표값을 기초로 2차원 고속역푸리에변환을 수행하는 고속역푸리에변환부;를 포함하는 것을 특징으로 하는 직교주파수분할다중화 장치.
- 제 1 항에 있어서,상기 2차원 고속역푸리에변환이 수행된 상기 N 개의 3차원 좌표값을 병직렬 변환하여 출력하는 병직렬변환부;를 더 포함하는 것을 특징으로 하는 직교주파수분할다중화 장치.
- 제 1 항에 있어서, 상기 2차원행렬의 각 열은상기 N 개의 3차원 좌표의 x축, y축 및 z축 값인 것을 특징으로 하는 직교주파수분할다중화 장치.
- 제 1 항에 있어서, 상기 2차원 고속역푸리에변환시상기 2차원행렬의 행과 열의 수를 이용하는 것을 특징으로 하는 직교주파수분할다중화 장치.
- 제 1 항에 있어서, 상기 N 개의 3차원 좌표값은복소수인 것을 특징으로 하는 직교주파수분할다중화 장치.
- 직렬 입력 신호를 N 개로 병렬화하는 단계;상기 N 개의 병렬화된 신호를 3차원 구면에 분포하는 신호점들로 구성된 신호성상도의 N 개의 3차원 좌표값으로 매핑하는 신호매핑단계;상기 신호매핑단계에서 3차원 좌표값으로 매핑된 N개의 신호를 기초로 2차원행렬을 생성하는 전환단계; 및상기 2차원행렬의 형태로 전환된 상기 N 개의 3차원 좌표값을 2차원고속역푸리에변환을 수행하는 고속역푸리에변환단계;를 포함하는 것을 특징으로 하는 직교주파수분할다중화 방법.
- 제 6 항에 있어서,상기 2차원 고속역푸리에변환이 수행된 상기 N 개의 3차원 좌표값을 병직렬 변환하여 출력하는 병직렬변환단계;를 더 포함하는 것을 특징으로 하는 직교주파수분할다중화 방법.
- 제 6 항에 있어서, 상기 2차원행렬의 각 열은상기 N 개의 3차원 좌표의 x축, y축 및 z축 값인 것을 특징으로 하는 직교주파수분할다중화 방법.
- 제 6 항에 있어서, 상기 2차원 고속역푸리에변환시상기 2차원행렬의 행과 열의 수를 이용하는 것을 특징으로 하는 직교주파수분할다중화 방법.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080072938A KR100964188B1 (ko) | 2008-07-25 | 2008-07-25 | 3차원 신호성상도를 사용하는 직교주파수분할다중화 장치및 방법 |
EP09164673.7A EP2148485B1 (en) | 2008-07-25 | 2009-07-06 | Method and apparatus for OFDM based on 3D signal constellations |
US12/505,013 US8018829B2 (en) | 2008-07-25 | 2009-07-17 | Method and apparatus for OFDM based on 3D signal constellation |
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KR1020080072938A KR100964188B1 (ko) | 2008-07-25 | 2008-07-25 | 3차원 신호성상도를 사용하는 직교주파수분할다중화 장치및 방법 |
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KR20100011639A true KR20100011639A (ko) | 2010-02-03 |
KR100964188B1 KR100964188B1 (ko) | 2010-06-17 |
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US (1) | US8018829B2 (ko) |
EP (1) | EP2148485B1 (ko) |
KR (1) | KR100964188B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8659988B2 (en) | 2009-08-20 | 2014-02-25 | Electronics And Telecommunications Research Institute | OFDM apparatus using three-dimensional hexadecimal signal constellation |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7991070B2 (en) * | 2007-08-20 | 2011-08-02 | Nec Laboratories America, Inc. | Wavelength transmission system and method using 3-dimensional LDPC-coded modulation |
CN104486284B (zh) * | 2014-12-19 | 2017-06-30 | 中国地质大学(武汉) | 基于增强型六维64psk星座的正交频分复用方法 |
CN107040491B (zh) * | 2017-03-28 | 2019-10-18 | 中国地质大学(武汉) | 一种基于16进制三维格子星座图映射的数字通信系统 |
CN114039830B (zh) * | 2021-10-20 | 2023-04-28 | 南京信息工程大学 | 一种分层对称型三维星座映射调制方法和系统 |
Family Cites Families (7)
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KR970005602B1 (ko) | 1994-06-25 | 1997-04-18 | 생산기술연구원 | 오에프디엠신호의 발생 및 복구방법 |
US5822371A (en) * | 1997-02-14 | 1998-10-13 | General Datacomm Inc. | Mapper for high data rate signalling |
EP2169894B1 (en) | 1997-09-04 | 2011-08-17 | Sony Deutschland GmbH | Transmission method and apparatus for OFDM-signals |
US7394865B2 (en) * | 2003-06-25 | 2008-07-01 | Nokia Corporation | Signal constellations for multi-carrier systems |
US7340001B2 (en) * | 2003-12-03 | 2008-03-04 | Ut-Battelle Llc | Multidimensional signal modulation and/or demodulation for data communications |
JP4567483B2 (ja) | 2005-02-16 | 2010-10-20 | 株式会社エヌ・ティ・ティ・ドコモ | Ofdm送信装置 |
KR20080067741A (ko) | 2007-01-17 | 2008-07-22 | 삼성전자주식회사 | 무선통신시스템에서 최대 전력대 평균 전력비를 줄이기위한 장치 및 방법 |
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- 2008-07-25 KR KR1020080072938A patent/KR100964188B1/ko not_active IP Right Cessation
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2009
- 2009-07-06 EP EP09164673.7A patent/EP2148485B1/en not_active Not-in-force
- 2009-07-17 US US12/505,013 patent/US8018829B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8659988B2 (en) | 2009-08-20 | 2014-02-25 | Electronics And Telecommunications Research Institute | OFDM apparatus using three-dimensional hexadecimal signal constellation |
Also Published As
Publication number | Publication date |
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US8018829B2 (en) | 2011-09-13 |
KR100964188B1 (ko) | 2010-06-17 |
EP2148485B1 (en) | 2013-06-12 |
EP2148485A3 (en) | 2012-02-15 |
EP2148485A2 (en) | 2010-01-27 |
US20100020675A1 (en) | 2010-01-28 |
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