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Mitigation of Impulsive Frequency-Selective Interference in OFDM Based Systems

Epple, Ulrich and Shutin, Dmitriy and Schnell, Michael (2012) Mitigation of Impulsive Frequency-Selective Interference in OFDM Based Systems. IEEE Wireless Communications Letters, 1 (5), pp. 484-487. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/WCL.2012.070312.120378. ISSN 2162-2337.

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Abstract

In this paper, an algorithm for mitigating impulsive interference in OFDM based systems is presented. It improves the conventional blanking nonlinearity approach for interference mitigation, which typically distorts the entire received signal, by combining the blanked and the original signal. The algorithm uses a Neyman-Pearson like testing procedure to detect interference at individual sub-carriers. Provided interference is detected, the blanked and the original received signals are then optimally combined such as to maximize the signal-to-interference-and-noise ratio. The algorithm does not require any prior knowledge about the impulsive interference and only marginally increases computational complexity as compared to the conventional blanking nonlinearity approach. Numerical results demonstrate the superior performance of the proposed scheme.

Item URL in elib:https://elib.dlr.de/95561/
Document Type:Article
Title:Mitigation of Impulsive Frequency-Selective Interference in OFDM Based Systems
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Epple, Ulrichulrich.epple (at) dlr.deUNSPECIFIED
Shutin, DmitriyDmitriy.Shutin (at) dlr.deUNSPECIFIED
Schnell, MichaelMichael.Schnell (at) dlr.deUNSPECIFIED
Date:9 July 2012
Journal or Publication Title:IEEE Wireless Communications Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:1
DOI:10.1109/WCL.2012.070312.120378
Page Range:pp. 484-487
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:2162-2337
Status:Published
Keywords:OFDM , blanking nonlinearity , impulsive interference , interference mitigation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:ATM and Operation (old)
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Communication, Navigation and Surveillance (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Epple, Ulrich
Deposited On:10 Mar 2015 10:53
Last Modified:06 Sep 2019 15:23

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