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OFDM Based Overlay Systems - Design Challenges and Solutions

Brandes, Sinja and Berthold, Ulrich and Schnell, Michael and Jondral, Friedrich K. (2007) OFDM Based Overlay Systems - Design Challenges and Solutions. In: 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, CD-ROM. 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2007-09-03 - 2007-09-07, Athens, Greece. ISBN 1-4244-1144-0.

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Abstract

With respect to the ever-growing demand for mobile communications on the one hand and spectral scarcity on the other hand it is necessary to increase spectral efficiency. In this paper, we focus on OFDM (Orthogonal Frequency-Division Multiplex) based overlay systems, which share a frequency band with already existing systems by adaptively filling the spectral holes. In order to enable such a co-existence, on the physical (PHY) layer promising methods for minimising mutual interference between the overlay system and the licensed system are presented. The medium-access control (MAC) layer protocols are designed such as to be able to efficiently signal the available subcarriers as well as to handle the changing available bandwidth. A third issue is the joint optimisation of PHY and MAC parameters which is essential in order to optimally exploit the available spectrum with minimum signalling overhead.

Item URL in elib:https://elib.dlr.de/48621/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:OFDM Based Overlay Systems - Design Challenges and Solutions
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Brandes, SinjaUNSPECIFIEDUNSPECIFIED
Berthold, UlrichInstitut für Nachrichtentechnik, Universität Karlsruhe (TH)UNSPECIFIED
Schnell, MichaelUNSPECIFIEDUNSPECIFIED
Jondral, Friedrich K.Institut für Nachrichtentechnik, Universität Karlsruhe (TH)UNSPECIFIED
Date:May 2007
Journal or Publication Title:18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:CD-ROM
Editors:
EditorsEmailEditor's ORCID iD
IEEE, UNSPECIFIEDUNSPECIFIED
ISBN:1-4244-1144-0
Status:Published
Keywords:OFDM, overlay system, overlay scenario, spectral efficiency, spectrum pooling
Event Title:18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
Event Location:Athens, Greece
Event Type:international Conference
Event Dates:2007-09-03 - 2007-09-07
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:05 Nov 2007
Last Modified:12 Dec 2013 20:24

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