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Epple, Ulrich und Schnell, Michael (2012) Adaptive Threshold Optimization for a Blanking Nonlinearity in OFDM Receivers. Globecom 2010, 3. - 7. Dez. 2012, Anaheim, USA.
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Kurzfassung
The application of a blanking nonlinearity to cope with impulsive interference is a common approach in OFDM systems. The choice of the amplitude threshold to decide whether a received sample is blanked heavily affects the performance of the entire transmission. Unfortunately, the perfect blanking threshold strongly depends on the characteristics of the interference. In previous publications this perfect threshold has been derived, given knowledge about the interference statistics. However, in general no reliable information about the interference statistics is known at the receiver side. In this paper a practical method for calculating an adaptive blanking threshold to maximize the signal-to-interference-and-noise ratio after the blanking nonlinearity is proposed. The calculation is based on the distribution of the amplitude of the received signal at the OFDM receiver. Simulation results show only a negligible performance degradation when comparing the proposed method to the case where the theoretically derived perfect threshold is applied for blanking.
| elib-URL des Eintrags: | https://elib.dlr.de/77211/ | ||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||
| Titel: | Adaptive Threshold Optimization for a Blanking Nonlinearity in OFDM Receivers | ||||||||||||
| Autoren: |
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| Datum: | Dezember 2012 | ||||||||||||
| Referierte Publikation: | Ja | ||||||||||||
| Open Access: | Ja | ||||||||||||
| Gold Open Access: | Ja | ||||||||||||
| In SCOPUS: | Nein | ||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||
| Status: | veröffentlicht | ||||||||||||
| Stichwörter: | OFDM, pulse blanking, blanking threshold, impulsive interference mitigation | ||||||||||||
| Veranstaltungstitel: | Globecom 2010 | ||||||||||||
| Veranstaltungsort: | Anaheim, USA | ||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||
| Veranstalter : | IEEE | ||||||||||||
| 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 - Kommunikation, Navigation und Überwachung (alt) | ||||||||||||
| Standort: | Oberpfaffenhofen | ||||||||||||
| Institute & Einrichtungen: | Institut für Kommunikation und Navigation > Nachrichtensysteme | ||||||||||||
| Hinterlegt von: | Epple, Ulrich | ||||||||||||
| Hinterlegt am: | 18 Dez 2012 10:26 | ||||||||||||
| Letzte Änderung: | 29 Mär 2023 00:15 |
Verfügbare Versionen dieses Eintrags
- Adaptive Threshold Optimization for a Blanking Nonlinearity in OFDM Receivers. (deposited 18 Dez 2012 10:26) [Gegenwärtig angezeigt]
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