AT511343A5 - Verfahren zum entzerren eines mehrträgersignals hinsichtlich interträgerinterferenz - Google Patents
Verfahren zum entzerren eines mehrträgersignals hinsichtlich interträgerinterferenz Download PDFInfo
- Publication number
- AT511343A5 AT511343A5 ATA9199/2008A AT91992008A AT511343A5 AT 511343 A5 AT511343 A5 AT 511343A5 AT 91992008 A AT91992008 A AT 91992008A AT 511343 A5 AT511343 A5 AT 511343A5
- Authority
- AT
- Austria
- Prior art keywords
- matrix
- frequency domain
- signal
- domain channel
- channel matrix
- Prior art date
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Classifications
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- 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
- H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
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- 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
- H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
- H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
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- 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
- H04L25/03987—Equalisation for sparse channels
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- 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
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03414—Multicarrier
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- 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
- H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
- H04L2025/03439—Fixed structures
- H04L2025/03522—Frequency domain
-
- 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
- H04L2025/03592—Adaptation methods
- H04L2025/03598—Algorithms
- H04L2025/03611—Iterative algorithms
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- 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
- H04L25/0202—Channel estimation
- H04L25/022—Channel estimation of frequency response
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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
- H04L27/2647—Arrangements specific to the receiver only
Abstract
Ein Verfahren zum Entzerren eines Mehrträgersignals hinsichtlich Interträgerinterferenz, wobei das Mehrträgersignal über einen Kanal, der von einer Frequenzbereichs-Kanalmatrix modelliert wird, empfangen wird, ist durch die Kombination der folgenden Schritte gekennzeichnet: Approximieren der Frequenzbereichs-Kanalmatrix durch eine dünn besetzte Matrix, umfassend mindestens ein Hauptband, bestehend aus einer signifikanten Diagonale der Frequenzbereichs-Kanalmatrix und den benachbarten parallelen Diagonalen in einer vorbestimmten Hauptbandbreite, wobei die verbleibenden Elemente der dünn besetzten Matrix null sind; und Bestimmen eines entzerrten Signals durch Lösen der Frequenzbereichs-Kanalmatrix-Gleichung x = HB • a, wobei x das empfangene Mehrträgersignal ist, HB die dünn besetzte Matrix ist und a das entzerrte Signal ist, mittels des iterativen LSQR-Algorithmus.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07450109A EP2003833A1 (de) | 2007-06-15 | 2007-06-15 | Verfahren zum Entzerren eines Mehrträgersignals für Interträgerinterferenz |
PCT/AT2008/000197 WO2008151337A1 (en) | 2007-06-15 | 2008-06-06 | Method of equalizing a multicarrier signal for intercarrier interference |
Publications (2)
Publication Number | Publication Date |
---|---|
AT511343B1 AT511343B1 (de) | 2012-11-15 |
AT511343A5 true AT511343A5 (de) | 2012-11-15 |
Family
ID=38572836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ATA9199/2008A AT511343B1 (de) | 2007-06-15 | 2008-06-06 | Verfahren zum entzerren eines mehrträgersignals hinsichtlich interträgerinterferenz |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2003833A1 (de) |
AT (1) | AT511343B1 (de) |
WO (1) | WO2008151337A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101545908B1 (ko) * | 2009-01-28 | 2015-08-20 | 삼성전자주식회사 | Ofdm 시스템에서 수신 신호의 등화 방법 및 이를 위한 장치 |
US8942321B2 (en) * | 2010-09-22 | 2015-01-27 | Qualcomm Incorporated | Efficient compressed sensing channel estimation for single-carrier communication systems |
CN106998307B (zh) * | 2017-06-01 | 2019-08-02 | 电子科技大学 | 一种用于大规模天线系统的盲信号检测及信道估计方法 |
CN114531325B (zh) * | 2021-11-18 | 2023-12-12 | 西安邮电大学 | 一种无线光通信信道估计方法 |
-
2007
- 2007-06-15 EP EP07450109A patent/EP2003833A1/de not_active Withdrawn
-
2008
- 2008-06-06 AT ATA9199/2008A patent/AT511343B1/de not_active IP Right Cessation
- 2008-06-06 WO PCT/AT2008/000197 patent/WO2008151337A1/en active Application Filing
Non-Patent Citations (8)
Title |
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Bateman D., Adler A.: "Sparse Matrix Implementation in Octave." [online], 3. April 2006 (03.04.2006). Ermittelt im Internet: URL: http://arxiv.org/abs/cs/0604006v1. [ermittelt am 26.09.2011]. * |
Gatherer A., Auslander E. (Editoren): "The Application of Programmable DSPs in Mobile Communications." Wiley, 2002. ISBN 0-471-48643-4. Seiten 83-93. * |
Gibson J.D. (Editor): "The Communications Handbook." 2nd edition, CRC Press LLC, 2002. ISBN 0-8493-0967-0. Kapitel 90.4: "Spatial Multiplexing". * |
Glisic S.: "Advanced Wireless Communications: 4G Technologies." Wiley, 2004. ISBN 0-470-86776-0. Seiten 444-447. * |
Hrycak T., Matz G.: "Low-Complexity Time-Domain ICI Equalization for OFDM Communications Over Rapidly Varying Channels." In: 40th Asilomar Conference on Signals, Systems and Computers, 2006. ACSSC '06. IEEE, 1. Oktober 2006 (01.10.2006). Seiten 1767-1771. * |
Jacobsen M. et al.: "Subspace Preconditioned LSQR for Discrete Ill-Posed Problems." In: Bit Numerical Mathematics, vol.43, No.5. Kluwer, 1. Dezember 2003 (01.12.2003). Seiten 975-989. * |
Paige C.C., Saunders M.A.: "LSQR: an algorithm for sparse linear equations and sparse least squares." In: ACM Transactions on Mathematical Software, vol.8, no.1. New York, 1. März 1982 (01.03.1982). Seiten 43-71. * |
Schniter P.: "Low-Complexity Equalization of OFDM in Doubly Selective Channels." In: IEEE Transactions on Signal Processing, vol.52, no.4, April 2004 (01.04.2004). Seiten 1002-1011. * |
Also Published As
Publication number | Publication date |
---|---|
AT511343B1 (de) | 2012-11-15 |
EP2003833A1 (de) | 2008-12-17 |
WO2008151337A1 (en) | 2008-12-18 |
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