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Frequency offset estimation for IFDMA uplink systems

Arkhipov, Alexander and Schnell, Michael (2006) Frequency offset estimation for IFDMA uplink systems. In: 2006 IEEE GLOBECOM Technical Conference. GLOBECOM 2006, 2006-11-27 - 2006-12-01, San Francisco.

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Official URL: http://www.ieee-globecom.org/2006/

Abstract

This paper proposes two frequency offset estimation algorithms for the uplink of an Interleaved Frequency-Division Multiple-Access (IFDMA) system. One algorithm performs estimation in the frequency domain and the other in the time domain. Both algorithms are based on the maximum likelihood estimation (MLE) principle and use knowledge about pilot symbols. IFDMA utilizes a block-interleaved frequency allocation scheme to exploit the frequency diversity of the channel. In the presence of frequency offsets between users, multiple-access interference (MAI) appears, which has a negative impact on existing frequency offset estimation algorithms. The proposed algorithms are robust, since a special construction of pilot symbols allows to exclude a large amount of MAI in the presence of frequency offsets between users. As a result, the proposed time domain frequency estimation algorithm outperforms the frequency domain algorithm and all other known schemes.

Item URL in elib:https://elib.dlr.de/44009/
Document Type:Conference or Workshop Item (Paper)
Title:Frequency offset estimation for IFDMA uplink systems
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Arkhipov, AlexanderUNSPECIFIEDUNSPECIFIED
Schnell, MichaelUNSPECIFIEDUNSPECIFIED
Date:1 December 2006
Journal or Publication Title:2006 IEEE GLOBECOM Technical Conference
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Mobile Communications, IFDMA, OFDMA, Synchronization
Event Title:GLOBECOM 2006
Event Location:San Francisco
Event Type:international Conference
Event Dates:2006-11-27 - 2006-12-01
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Arkhipov, Alexander
Deposited On:06 Aug 2007
Last Modified:31 Jul 2019 19:17

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