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Reduction of Out-Of-Band Radiation in OFDM Based Overlay Systems

Brandes, Sinja and Cosovic, Ivan and Schnell, Michael (2005) Reduction of Out-Of-Band Radiation in OFDM Based Overlay Systems. In: 2005 1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, pp. 662-665. 1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN '05), 2005-11-08 - 2005-11-11, Baltimore, MD (USA). ISBN 1-4244-0013-9.

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Abstract

In orthogonal frequency-division multiplexing (OFDM) based overlay systems the reduction of the out-of-band radiation is one of the most essential topics. In this paper, two approaches are considered: the conventional windowing of the OFDM signal in time domain and the recently presented concept of cancellation carriers (CCs) where CCs are inserted at the borders of the used OFDM spectrum to suppress the sidelobes of the transmit signal. From an exemplary overlay scenario in the very high frequency (VHF) band, requirements on sidelobe suppression are derived. Simulation results show that by combining windowing with the CC concept the out-of-band radiation can be reduced significantly, and thus, enabling a successful coexistence of two systems in the VHF band.

Item URL in elib:https://elib.dlr.de/21524/
Document Type:Conference or Workshop Item (Poster)
Title:Reduction of Out-Of-Band Radiation in OFDM Based Overlay Systems
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Brandes, SinjaUNSPECIFIEDUNSPECIFIED
Cosovic, IvanUNSPECIFIEDUNSPECIFIED
Schnell, MichaelUNSPECIFIEDUNSPECIFIED
Date:November 2005
Journal or Publication Title:2005 1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 662-665
Editors:
EditorsEmailEditor's ORCID iD
IEEE, UNSPECIFIEDUNSPECIFIED
ISBN:1-4244-0013-9
Status:Published
Keywords:OFDM overlay systems, out-of-band radiation, sidelobe suppression
Event Title:1st IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN '05)
Event Location:Baltimore, MD (USA)
Event Type:international Conference
Event Dates:2005-11-08 - 2005-11-11
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 - Effiziente Flugführung und Flugbetrieb (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Brandes, Sinja
Deposited On:23 Jan 2006
Last Modified:12 Dec 2013 20:09

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