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Conference Paper: Optimal CFO and channel estimation for OFDMA uplink using importance sampling

TitleOptimal CFO and channel estimation for OFDMA uplink using importance sampling
Authors
Chen, JWu, YCNg, TS
Issue Date2007
Citation
Iscit 2007 - 2007 International Symposium On Communications And Information Technologies Proceedings, 2007, p. 977-982 How to Cite?
DOI: http://dx.doi.org/10.1109/ISCIT.2007.4392157
AbstractIn this paper, we derive the optimal carrier frequency offset (CFO) and channel estimator for OFDMA uplink based on joint maximum likelihood (ML) criterion. Direct implementation of the resultant estimation scheme is quite challenging due to the need of multi-dimensional exhaustive search in multi-CFO estimation. To solve this problem, a computationally efficient method using importance sampling technique is proposed. Without the need of providing initial estimate, the proposed estimator guarantees to generate the global optimal solution. Simulation results clearly verify the effectiveness of the proposed estimation scheme. © 2007 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/99076
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorChen, Jen_HK
dc.contributor.authorWu, YCen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2010-09-25T18:14:52Z-
dc.date.available2010-09-25T18:14:52Z-
dc.date.issued2007en_HK
dc.identifier.citationIscit 2007 - 2007 International Symposium On Communications And Information Technologies Proceedings, 2007, p. 977-982en_HK
dc.identifier.urihttp://hdl.handle.net/10722/99076-
dc.description.abstractIn this paper, we derive the optimal carrier frequency offset (CFO) and channel estimator for OFDMA uplink based on joint maximum likelihood (ML) criterion. Direct implementation of the resultant estimation scheme is quite challenging due to the need of multi-dimensional exhaustive search in multi-CFO estimation. To solve this problem, a computationally efficient method using importance sampling technique is proposed. Without the need of providing initial estimate, the proposed estimator guarantees to generate the global optimal solution. Simulation results clearly verify the effectiveness of the proposed estimation scheme. © 2007 IEEE.en_HK
dc.languageengen_HK
dc.relation.ispartofISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedingsen_HK
dc.titleOptimal CFO and channel estimation for OFDMA uplink using importance samplingen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailWu, YC:ycwu@eee.hku.hken_HK
dc.identifier.emailNg, TS:tsng@eee.hku.hken_HK
dc.identifier.authorityWu, YC=rp00195en_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/ISCIT.2007.4392157en_HK
dc.identifier.scopuseid_2-s2.0-46749139587en_HK
dc.identifier.hkuros152288en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-46749139587&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage977en_HK
dc.identifier.epage982en_HK
dc.identifier.scopusauthoridChen, J=23007435700en_HK
dc.identifier.scopusauthoridWu, YC=7406894786en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK

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