WO2005053212A1 - Procede et dispositif permettant d'accroitre la capacite des systemes de transmission non etales - Google Patents
Procede et dispositif permettant d'accroitre la capacite des systemes de transmission non etales Download PDFInfo
- Publication number
- WO2005053212A1 WO2005053212A1 PCT/EP2004/053140 EP2004053140W WO2005053212A1 WO 2005053212 A1 WO2005053212 A1 WO 2005053212A1 EP 2004053140 W EP2004053140 W EP 2004053140W WO 2005053212 A1 WO2005053212 A1 WO 2005053212A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- information
- info
- symbols
- users
- bits
- Prior art date
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
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
- H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
-
- 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
- H04L1/0045—Arrangements at the receiver end
- H04L1/0055—MAP-decoding
-
- 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
Definitions
- the information on the coded bits lnfo can be reused in order to re-estimate information on the symbols as described above.
- the information on the useful bits is deduced from the information on the bits coded for example by the decoding procedure.
- Prior processing of the information transmitted to the different blocks may prove necessary for the proper functioning of the process. For example, in the example described below, the information previously used to estimate new qualitative information on a bit is subtracted in order to bring only real new information to the block receiving it. These steps are repeated, either a fixed number of times, or until a criterion is verified (for example, the qualitative information no longer changes).
- the operation of the method is described below as an example for the user Ni.
- the detector within the meaning of the MAP provides the following probabilities: (qualitative information of the estimated symbols - probability of the symbols emitted for the different emitters)
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Error Detection And Correction (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/580,203 US20070071135A1 (en) | 2003-11-28 | 2004-11-02 | Method and device for increasing the capacity of non-spread transmission systems |
JP2006540465A JP2007513545A (ja) | 2003-11-28 | 2004-11-26 | 非拡散伝送システムの容量増強方法及び装置 |
EP04804594A EP1695473A1 (fr) | 2003-11-28 | 2004-11-26 | Procede et dispositif permettant d accroitre la capacite des systemes de transmission non etales |
CA002547555A CA2547555A1 (fr) | 2003-11-28 | 2004-11-26 | Procede et dispositif permettant d'accroitre la capacite des systemes de transmission non etales |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0314014A FR2863122B1 (fr) | 2003-11-28 | 2003-11-28 | Procede et dispositif permettant d'accroitre la capacite des systemes de transmissions non etales |
FR0314014 | 2003-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005053212A1 true WO2005053212A1 (fr) | 2005-06-09 |
Family
ID=34566240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/053140 WO2005053212A1 (fr) | 2003-11-28 | 2004-11-26 | Procede et dispositif permettant d'accroitre la capacite des systemes de transmission non etales |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070071135A1 (fr) |
EP (1) | EP1695473A1 (fr) |
JP (1) | JP2007513545A (fr) |
CA (1) | CA2547555A1 (fr) |
FR (1) | FR2863122B1 (fr) |
WO (1) | WO2005053212A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114884525A (zh) * | 2022-07-08 | 2022-08-09 | 航大防务(海南)科技有限公司 | 一种用于ads-b航空系统的定位方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19923407C1 (de) * | 1999-05-21 | 2000-08-24 | Siemens Ag | Empfangsverfahren und Empfangseinrichtung für Mobilfunkanwendungen |
US6529559B2 (en) * | 2001-01-12 | 2003-03-04 | Comsys Communication & Signal Processing Ltd. | Reduced soft output information packet selection |
JP2003069531A (ja) * | 2001-08-23 | 2003-03-07 | Mitsubishi Electric Corp | 移動体通信システム、マルチキャリアcdma送信装置およびマルチキャリアcdma受信装置 |
EP1300977A1 (fr) * | 2001-10-04 | 2003-04-09 | Mitsubishi Electric Information Technology Centre Europe B.V. | Annulation d'interférence en parallèle dans un système de télécommunication multiporteuse AMCR |
US6704376B2 (en) * | 2002-01-23 | 2004-03-09 | Bae Systems Information And Electronic Systems Integration Inc. | Power and confidence ordered low complexity soft turbomud with voting system |
CN1797987B (zh) * | 2004-12-30 | 2011-02-16 | 都科摩(北京)通信技术研究中心有限公司 | 自适应调度的mimo通信系统及其自适应用户调度方法 |
-
2003
- 2003-11-28 FR FR0314014A patent/FR2863122B1/fr not_active Expired - Lifetime
-
2004
- 2004-11-02 US US10/580,203 patent/US20070071135A1/en not_active Abandoned
- 2004-11-26 WO PCT/EP2004/053140 patent/WO2005053212A1/fr active Application Filing
- 2004-11-26 EP EP04804594A patent/EP1695473A1/fr not_active Withdrawn
- 2004-11-26 JP JP2006540465A patent/JP2007513545A/ja active Pending
- 2004-11-26 CA CA002547555A patent/CA2547555A1/fr not_active Abandoned
Non-Patent Citations (7)
Title |
---|
GIRIDHAR K ET AL: "Nonlinear techniques for the joint estimation of cochannel signals", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE INC. NEW YORK, US, vol. 45, no. 4, April 1997 (1997-04-01), pages 473 - 484, XP002124012, ISSN: 0090-6778 * |
JUNQIANG LI ET AL: "Reduced complexity MAP-based iterative multiuser detection for coded multi-carrier CDMA systems", GLOBECOM'02. 2002 - IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE. CONFERENCE PROCEEDINGS. TAIPEI, TAIWAN, NOV. 17 - 21, 2002, IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, NEW YORK, NY : IEEE, US, vol. VOL. 1 OF 3, 17 November 2002 (2002-11-17), pages 916 - 920, XP010636083, ISBN: 0-7803-7632-3 * |
KAFLE P L ET AL: "An iterative multiuser receiver using groupwise MLSE and interference cancellation in a MC-CDMA system", IEEE CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING. CCECE 2002. WINNIPEG, MANITOBA, CANADA, MAY 12 - 15, 2002, CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING, NEW YORK, NY : IEEE, US, vol. VOL. 3 OF 3, 12 May 2002 (2002-05-12), pages 1236 - 1241, XP002256081, ISBN: 0-7803-7514-9 * |
See also references of EP1695473A1 * |
STRAUCH P ET AL: "Turbo equalization for an 8-PSK modulation scheme in a mobile TDMA communication system", VEHICULAR TECHNOLOGY CONFERENCE, 1999. VTC 1999 - FALL. IEEE VTS 50TH AMSTERDAM, NETHERLANDS 19-22 SEPT. 1999, PISCATAWAY, NJ, USA,IEEE, US, vol. 3, 19 September 1999 (1999-09-19), pages 1605 - 1609, XP010353297, ISBN: 0-7803-5435-4 * |
WANG X ET AL: "ITERACTIVE (TURBO) SOFT INTERFERENCE CANCELLATION AND DECODING FOR CODED CDMA", IEEE TRANSACTIONS ON COMMUNICATIONS, IEEE INC. NEW YORK, US, vol. 47, no. 7, July 1999 (1999-07-01), pages 1046 - 1061, XP000849079, ISSN: 0090-6778 * |
ZEMEN T ET AL: "Iterative detection and channel estimation for MC-CDMA", ICC 2003. 2003 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS. ANCHORAGE, AK, MAY 11 - 15, 2003, IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, NEW YORK, NY : IEEE, US, vol. VOL. 1 OF 5, 11 May 2003 (2003-05-11), pages 3462 - 3466, XP010643089, ISBN: 0-7803-7802-4 * |
Also Published As
Publication number | Publication date |
---|---|
FR2863122B1 (fr) | 2006-04-28 |
CA2547555A1 (fr) | 2005-06-09 |
EP1695473A1 (fr) | 2006-08-30 |
FR2863122A1 (fr) | 2005-06-03 |
US20070071135A1 (en) | 2007-03-29 |
JP2007513545A (ja) | 2007-05-24 |
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