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Two-Dimensional Differential Demodulation for OFDM

Haas, E. and Kaiser, S. (2003) Two-Dimensional Differential Demodulation for OFDM. IEEE Transactions on Communications, 51 (4), pp. 580-586.

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Abstract

The possibility of combining differential demodulators in time direction and frequency direction for orthogonal frequency-division multiplexing (OFDM) frames is investigated. The proposed algorithm uses not only the direction in which the information is modulated, but also joins it with other symbols in time or frequency direction of the OFDM frame, resulting in an additional second direction that is differentially demodulated as well. In the special case that is investigated here, the second direction does not carry any modulated information. Nevertheless, it is shown that it can be used for the two-dimensional demodulation process without changing the transmitter. Therefore, the proposed algorithm is applicable for existing digital transmission systems, for example, digital audio broadcasting, as well as new systems.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2004,
Title:Two-Dimensional Differential Demodulation for OFDM
Authors:
AuthorsInstitution or Email of Authors
Haas, E.UNSPECIFIED
Kaiser, S.UNSPECIFIED
Date:2003
Journal or Publication Title:IEEE Transactions on Communications
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:51
Page Range:pp. 580-586
Status:Published
Keywords:OFDM, Two-Dimensional, Differential, Demodulation
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:L SF - Safe and Efficient Air Traffic Guidance (old)
DLR - Research area:Aeronautics
DLR - Program:L SF - Safe and Efficient Air Traffic Guidance
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 21:29

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