Berthold, Ulrich and Jondral, Friedrich K. and Brandes, Sinja and Schnell, Michael (2007) OFDM based Overlay Systems - A Promising Approach for Enhancing Spectral Efficiency. IEEE Communications Magazine, 45 (12), pp. 52-58. doi: 10.1109/MCOM.2007.4395365.
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Abstract
Recently, several approaches for increasing spectral efficiency have been proposed to overcome the scarcity of spectral resources and to ensure that the ever-growing demand for high data rate mobile communications can be met in the future. In this article, we focus on OFDM based overlay systems that share a frequency band with already existing systems without degrading their performance. This is achieved by temporarily using those parts of the common frequency band that are currently not used by the licensed system. In particular, we focus on design issues for the physical layer as well as the medium access control layer and propose appropriate solutions for enabling coexistence. As a result, our investigations show that OFDM based overlay systems are a promising approach for enhancing spectral efficiency.
Item URL in elib: | https://elib.dlr.de/50237/ | ||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||
Title: | OFDM based Overlay Systems - A Promising Approach for Enhancing Spectral Efficiency | ||||||||||||||||||||
Authors: |
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Date: | 2007 | ||||||||||||||||||||
Journal or Publication Title: | IEEE Communications Magazine | ||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||
Volume: | 45 | ||||||||||||||||||||
DOI: | 10.1109/MCOM.2007.4395365 | ||||||||||||||||||||
Page Range: | pp. 52-58 | ||||||||||||||||||||
Editors: |
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Status: | Published | ||||||||||||||||||||
Keywords: | OFDM, overlay systems, spectral efficiency | ||||||||||||||||||||
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 2008 | ||||||||||||||||||||
Last Modified: | 12 Dec 2013 20:26 |
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