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Conference Paper: Joint CFO and channel estimation for ZP-OFDM modulated two-way relay networks

TitleJoint CFO and channel estimation for ZP-OFDM modulated two-way relay networks
Authors
KeywordsCarrier frequency offset
Channel estimation
OFDM
Performance analysis
Two-way relay network
Issue Date2010
PublisherIEEE Communications Society.
Citation
The 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?
Abstract
In 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.
Persistent Identifierhttp://hdl.handle.net/10722/126088
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorWang, Gen_HK
dc.contributor.authorGao, Fen_HK
dc.contributor.authorWu, YCen_HK
dc.contributor.authorTellambura, Cen_HK
dc.date.accessioned2010-10-31T12:09:08Z-
dc.date.available2010-10-31T12:09:08Z-
dc.date.issued2010en_HK
dc.identifier.citationThe IEEE Conference on Wireless Communications and Networking (WCNC 2010), Sydney, NSW., 18-21 April 2010. In Proceedings of WCNC, 2010, p. 1-6en_HK
dc.identifier.issn1525-3511en_HK
dc.identifier.urihttp://hdl.handle.net/10722/126088-
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.en_HK
dc.languageengen_HK
dc.publisherIEEE Communications Society.-
dc.relation.ispartofProceedings of the IEEE Conference on Wireless Communications and Networking, WCNC 2010en_HK
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 offseten_HK
dc.subjectChannel estimationen_HK
dc.subjectOFDMen_HK
dc.subjectPerformance analysisen_HK
dc.subjectTwo-way relay networken_HK
dc.titleJoint CFO and channel estimation for ZP-OFDM modulated two-way relay networksen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1525-3511&volume=&spage=1&epage=6&date=2010&atitle=Joint+CFO+and+channel+estimation+for+ZP-OFDM+modulated+two-way+relay+networks-
dc.identifier.emailWu, YC:ycwu@eee.hku.hken_HK
dc.identifier.authorityWu, YC=rp00195en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/WCNC.2010.5506619en_HK
dc.identifier.scopuseid_2-s2.0-77955033523en_HK
dc.identifier.hkuros175316en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77955033523&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage1-
dc.identifier.epage6-
dc.publisher.placeUnited Statesen_HK
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.scopusauthoridWang, G=34882344300en_HK
dc.identifier.scopusauthoridGao, F=11940803400en_HK
dc.identifier.scopusauthoridWu, YC=7406894786en_HK
dc.identifier.scopusauthoridTellambura, C=7006820583en_HK

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