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Brandes, Sinja und Schnell, Michael (2007) Mitigation of Dynamically Changing NBI in OFDM Based Overlay Systems. In: Multi-Carrier Spread Spectrum 2007, Seiten 117-126. Springer. 2007 MC-SS Workshop, 2007-05-07 - 2007-05-09, Herrsching, Germany. ISBN 978-1-4020-6128-8.
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Kurzfassung
In overlay systems based on orthogonal frequency-division multiplexing (OFDM) narrow-band interference (NBI) from licensed systems transmitting in the same frequency band degrades system performance significantly. In this paper, the impact of NBI is either reduced by means of an optimized compensation matrix or by simply subtracting an estimated NBI signal from the received signal. The required estimation of the NBI signal is performed by means of a few observation subcarriers. Variations in the center frequency of the interferer are tracked by exploiting information from pilot OFDM symbols for channel estimation. Simulation results show that with both techniques system performance is improved significantly even in presence of strong and dynamically changing NBI.
| elib-URL des Eintrags: | https://elib.dlr.de/47611/ | ||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||||||||||
| Titel: | Mitigation of Dynamically Changing NBI in OFDM Based Overlay Systems | ||||||||||||||||||||
| Autoren: |
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| Datum: | 1 März 2007 | ||||||||||||||||||||
| Erschienen in: | Multi-Carrier Spread Spectrum 2007 | ||||||||||||||||||||
| Referierte Publikation: | Nein | ||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||
| Seitenbereich: | Seiten 117-126 | ||||||||||||||||||||
| Herausgeber: |
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| Verlag: | Springer | ||||||||||||||||||||
| ISBN: | 978-1-4020-6128-8 | ||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||
| Stichwörter: | OFDM, overlay system, NBI | ||||||||||||||||||||
| Veranstaltungstitel: | 2007 MC-SS Workshop | ||||||||||||||||||||
| Veranstaltungsort: | Herrsching, Germany | ||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||
| Veranstaltungsbeginn: | 7 Mai 2007 | ||||||||||||||||||||
| Veranstaltungsende: | 9 Mai 2007 | ||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||
| HGF - Programmthema: | ATM und Flugbetrieb (alt) | ||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
| DLR - Forschungsgebiet: | L AO - Luftverkehrsmanagement und Flugbetrieb | ||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Effiziente Flugführung und Flugbetrieb (alt) | ||||||||||||||||||||
| Standort: | Oberpfaffenhofen | ||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Kommunikation und Navigation > Nachrichtensysteme | ||||||||||||||||||||
| Hinterlegt von: | Brandes, Sinja | ||||||||||||||||||||
| Hinterlegt am: | 11 Jun 2007 | ||||||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 19:09 |
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