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

TitleJoint CFO and channel estimation for CP-OFDM modulated two-way relay networks
Authors
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
Citation
The 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?
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 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.
Persistent Identifierhttp://hdl.handle.net/10722/129658
ISSN
2013 SCImago Journal Rankings: 0.150
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.accessioned2010-12-23T08:40:45Z-
dc.date.available2010-12-23T08:40:45Z-
dc.date.issued2010en_HK
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. 1-5en_HK
dc.identifier.issn0536-1486en_HK
dc.identifier.urihttp://hdl.handle.net/10722/129658-
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.en_HK
dc.languageengen_US
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 2010en_HK
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 networksen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1550-3607&volume=&spage=1&epage=5&date=2010&atitle=Joint+CFO+and+channel+estimation+for+CP-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/ICC.2010.5501833en_HK
dc.identifier.scopuseid_2-s2.0-77955393586en_HK
dc.identifier.hkuros177100en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77955393586&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage1-
dc.identifier.epage5-
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.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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