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Conference Paper: Joint CFO and channel estimation for CP-OFDM modulated two-way relay networks
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TitleJoint CFO and channel estimation for CP-OFDM modulated two-way relay networks
 
AuthorsWang, G3
Gao, F1
Wu, YC2
Tellambura, C3
 
KeywordsCarrier frequency offsets
CP-OFDM
Cyclic prefix
Estimation problem
Frequency-selective
 
Issue Date2010
 
PublisherIEEE. The Journal's web site is located at http://www.ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000104
 
CitationThe IEEE International Conference on Communications (ICC 2010), Cape Town, South Africa, 23-27 May 2010. In Proceedings of the IEEE International Conference on Communications, 2010, p. 1-5 [How to Cite?]
DOI: http://dx.doi.org/10.1109/ICC.2010.5501833
 
AbstractIn this paper, we study the problem of joint carrier frequency offset (CFO) and channel estimation for amplify-andforward (AF) two-way relay network (TWRN) that comprises two source terminals and one relay node. Both the system design and the estimation problem become more challenging when CFO is non-zero in a frequency-selective environment, as compared to the conventional point-to-point communication systems. By introducing some redundancy, we propose a cyclic prefix (CP) based OFDM modulation for TWRN that is capable of maintaining the advantage of using multi-carrier transmission and at the same time facilitates the system initialization, e.g., synchronization and channel estimation. We then apply a least square (LS) approach to solve the estimation problem. The approximated Cramér-Rao Bound (CRB) has been derived as the performance benchmark of the proposed estimator. Finally, simulations are provided to corroborate the theoretical studies. ©2010 IEEE.
 
ISSN0536-1486
2013 SCImago Journal Rankings: 0.150
 
DOIhttp://dx.doi.org/10.1109/ICC.2010.5501833
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorWang, G
 
dc.contributor.authorGao, F
 
dc.contributor.authorWu, YC
 
dc.contributor.authorTellambura, C
 
dc.date.accessioned2010-12-23T08:40:45Z
 
dc.date.available2010-12-23T08:40:45Z
 
dc.date.issued2010
 
dc.description.abstractIn this paper, we study the problem of joint carrier frequency offset (CFO) and channel estimation for amplify-andforward (AF) two-way relay network (TWRN) that comprises two source terminals and one relay node. Both the system design and the estimation problem become more challenging when CFO is non-zero in a frequency-selective environment, as compared to the conventional point-to-point communication systems. By introducing some redundancy, we propose a cyclic prefix (CP) based OFDM modulation for TWRN that is capable of maintaining the advantage of using multi-carrier transmission and at the same time facilitates the system initialization, e.g., synchronization and channel estimation. We then apply a least square (LS) approach to solve the estimation problem. The approximated Cramér-Rao Bound (CRB) has been derived as the performance benchmark of the proposed estimator. Finally, simulations are provided to corroborate the theoretical studies. ©2010 IEEE.
 
dc.description.naturepublished_or_final_version
 
dc.description.otherThe IEEE International Conference on Communications (ICC 2010), Cape Town, South Africa, 23-27 May 2010. In Proceedings of the IEEE International Conference on Communications, 2010, p. 1-5
 
dc.identifier.citationThe IEEE International Conference on Communications (ICC 2010), Cape Town, South Africa, 23-27 May 2010. In Proceedings of the IEEE International Conference on Communications, 2010, p. 1-5 [How to Cite?]
DOI: http://dx.doi.org/10.1109/ICC.2010.5501833
 
dc.identifier.doihttp://dx.doi.org/10.1109/ICC.2010.5501833
 
dc.identifier.epage5
 
dc.identifier.hkuros177100
 
dc.identifier.issn0536-1486
2013 SCImago Journal Rankings: 0.150
 
dc.identifier.openurl
 
dc.identifier.scopuseid_2-s2.0-77955393586
 
dc.identifier.spage1
 
dc.identifier.urihttp://hdl.handle.net/10722/129658
 
dc.languageeng
 
dc.publisherIEEE. The Journal's web site is located at http://www.ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000104
 
dc.relation.ispartofProceedings of the IEEE International Conference on Communications, ICC 2010
 
dc.relation.referencesReferences in Scopus
 
dc.rightsIEEE International Conference on Communications. Copyright © IEEE.
 
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 offsets
 
dc.subjectCP-OFDM
 
dc.subjectCyclic prefix
 
dc.subjectEstimation problem
 
dc.subjectFrequency-selective
 
dc.titleJoint CFO and channel estimation for CP-OFDM modulated two-way relay networks
 
dc.typeConference_Paper
 
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<description.abstract>In this paper, we study the problem of joint carrier frequency offset (CFO) and channel estimation for amplify-andforward (AF) two-way relay network (TWRN) that comprises two source terminals and one relay node. Both the system design and the estimation problem become more challenging when CFO is non-zero in a frequency-selective environment, as compared to the conventional point-to-point communication systems. By introducing some redundancy, we propose a cyclic prefix (CP) based OFDM modulation for TWRN that is capable of maintaining the advantage of using multi-carrier transmission and at the same time facilitates the system initialization, e.g., synchronization and channel estimation. We then apply a least square (LS) approach to solve the estimation problem. The approximated Cram&#233;r-Rao Bound (CRB) has been derived as the performance benchmark of the proposed estimator. Finally, simulations are provided to corroborate the theoretical studies. &#169;2010 IEEE.</description.abstract>
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<subject>Carrier frequency offsets</subject>
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<subject>Estimation problem</subject>
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Author Affiliations
  1. Jacobs University Bremen
  2. The University of Hong Kong
  3. University of Alberta