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Conference Paper: Joint CFO and channel estimation for ZP-OFDM modulated two-way relay networks
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TitleJoint CFO and channel estimation for ZP-OFDM modulated two-way relay networks
 
AuthorsWang, G3
Gao, F1
Wu, YC2
Tellambura, C3
 
KeywordsCarrier frequency offset
Channel estimation
OFDM
Performance analysis
Two-way relay network
 
Issue Date2010
 
PublisherIEEE Communications Society.
 
CitationThe IEEE Conference on Wireless Communications and Networking (WCNC 2010), Sydney, NSW., 18-21 April 2010. In Proceedings of WCNC, 2010, p. 1-6 [How to Cite?]
DOI: http://dx.doi.org/10.1109/WCNC.2010.5506619
 
AbstractIn this paper, we study the problem of joint carrier frequency offset (CFO) and channel estimation for two-way relay network (TWRN). We consider the frequency selective fading channels and adopt the zero padding (ZP) based orthogonal frequency division multiplexing (OFDM) as the modulation of the transmission. Due to the mixture of the first and the second transmission phases, the joint estimation problem becomes much challenging than that in the traditional point-to-point communication systems. By introducing some redundancy, we modify the structure of ZP-OFDM to cope with non-zero frequency synchronization errors. We then propose a nulling-based least square (NLS) method for joint CFO and channel estimation. A detailed performance analysis of NLS has been conducted, where we prove that the unbiasedness of NLS and derive the closed-form estimation mean-square-error (MSE) at high signal-to-noise ratio (SNR). Finally, simulations are provided to corroborate the proposed studies. ©2010 IEEE.
 
ISSN1525-3511
 
DOIhttp://dx.doi.org/10.1109/WCNC.2010.5506619
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorWang, G
 
dc.contributor.authorGao, F
 
dc.contributor.authorWu, YC
 
dc.contributor.authorTellambura, C
 
dc.date.accessioned2010-10-31T12:09:08Z
 
dc.date.available2010-10-31T12:09:08Z
 
dc.date.issued2010
 
dc.description.abstractIn this paper, we study the problem of joint carrier frequency offset (CFO) and channel estimation for two-way relay network (TWRN). We consider the frequency selective fading channels and adopt the zero padding (ZP) based orthogonal frequency division multiplexing (OFDM) as the modulation of the transmission. Due to the mixture of the first and the second transmission phases, the joint estimation problem becomes much challenging than that in the traditional point-to-point communication systems. By introducing some redundancy, we modify the structure of ZP-OFDM to cope with non-zero frequency synchronization errors. We then propose a nulling-based least square (NLS) method for joint CFO and channel estimation. A detailed performance analysis of NLS has been conducted, where we prove that the unbiasedness of NLS and derive the closed-form estimation mean-square-error (MSE) at high signal-to-noise ratio (SNR). Finally, simulations are provided to corroborate the proposed studies. ©2010 IEEE.
 
dc.description.naturepublished_or_final_version
 
dc.description.otherThe IEEE Conference on Wireless Communications and Networking (WCNC 2010), Sydney, NSW., 18-21 April 2010. In Proceedings of WCNC, 2010, p. 1-6
 
dc.identifier.citationThe IEEE Conference on Wireless Communications and Networking (WCNC 2010), Sydney, NSW., 18-21 April 2010. In Proceedings of WCNC, 2010, p. 1-6 [How to Cite?]
DOI: http://dx.doi.org/10.1109/WCNC.2010.5506619
 
dc.identifier.doihttp://dx.doi.org/10.1109/WCNC.2010.5506619
 
dc.identifier.epage6
 
dc.identifier.hkuros175316
 
dc.identifier.issn1525-3511
 
dc.identifier.openurl
 
dc.identifier.scopuseid_2-s2.0-77955033523
 
dc.identifier.spage1
 
dc.identifier.urihttp://hdl.handle.net/10722/126088
 
dc.languageeng
 
dc.publisherIEEE Communications Society.
 
dc.publisher.placeUnited States
 
dc.relation.ispartofProceedings of the IEEE Conference on Wireless Communications and Networking, WCNC 2010
 
dc.relation.referencesReferences in Scopus
 
dc.rightsIEEE Wireless Communications and Networking Conference. Proceedings. Copyright © IEEE Communications Society.
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
 
dc.rights©2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
 
dc.subjectCarrier frequency offset
 
dc.subjectChannel estimation
 
dc.subjectOFDM
 
dc.subjectPerformance analysis
 
dc.subjectTwo-way relay network
 
dc.titleJoint CFO and channel estimation for ZP-OFDM modulated two-way relay networks
 
dc.typeConference_Paper
 
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<subject>Carrier frequency offset</subject>
<subject>Channel estimation</subject>
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Author Affiliations
  1. Jacobs University Bremen
  2. The University of Hong Kong
  3. University of Alberta