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Conference Paper: Semi-blind estimation of channels and symbols for asynchronous MIMO systems

TitleSemi-blind estimation of channels and symbols for asynchronous MIMO systems
Authors
Issue Date2005
PublisherThe Institution of Engineering and Technology. The Journal's web site is located at http://www.ietdl.org/IP-COM
Citation
Iee Proceedings: Communications, 2005, v. 152 n. 6, p. 883-889 How to Cite?
AbstractSemi-blind channel estimation and equalisation algorithms for asynchronous multiple input multiple output (MIMO) systems are proposed. MIMO channels are estimated from the second-order statistics of the received signals subject to an ambiguity matrix and unknown time delays. Then some pilot symbols are used to resolve the ambiguity matrix and the time delays. Two methods are presented for equalisation: the direct method and the two-step method. The direct method equalises the symbols directly without explicitly estimating the channels, while the two-step method needs to estimate the channels before recovering the symbols. Only upper bounds for the channel orders and the time delays are needed for implementing the algorithms. Neither the knowledge of real channel orders nor precise synchronisation of different users is required, which makes the algorithm applicable to practical multiuser MIMO systems.
Persistent Identifierhttp://hdl.handle.net/10722/73573
ISSN
2008 Impact Factor: 0.788
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZeng, YHen_HK
dc.contributor.authorMa, SDen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2010-09-06T06:52:40Z-
dc.date.available2010-09-06T06:52:40Z-
dc.date.issued2005en_HK
dc.identifier.citationIee Proceedings: Communications, 2005, v. 152 n. 6, p. 883-889en_HK
dc.identifier.issn1350-2425en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73573-
dc.description.abstractSemi-blind channel estimation and equalisation algorithms for asynchronous multiple input multiple output (MIMO) systems are proposed. MIMO channels are estimated from the second-order statistics of the received signals subject to an ambiguity matrix and unknown time delays. Then some pilot symbols are used to resolve the ambiguity matrix and the time delays. Two methods are presented for equalisation: the direct method and the two-step method. The direct method equalises the symbols directly without explicitly estimating the channels, while the two-step method needs to estimate the channels before recovering the symbols. Only upper bounds for the channel orders and the time delays are needed for implementing the algorithms. Neither the knowledge of real channel orders nor precise synchronisation of different users is required, which makes the algorithm applicable to practical multiuser MIMO systems.en_HK
dc.languageengen_HK
dc.publisherThe Institution of Engineering and Technology. The Journal's web site is located at http://www.ietdl.org/IP-COMen_HK
dc.relation.ispartofIEE Proceedings: Communicationsen_HK
dc.titleSemi-blind estimation of channels and symbols for asynchronous MIMO systemsen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailMa, SD: sdma@eee.hku.hken_HK
dc.identifier.emailNg, TS: tsng@eee.hku.hken_HK
dc.identifier.authorityMa, SD=rp00153en_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1049/ip-com:20050052en_HK
dc.identifier.scopuseid_2-s2.0-29144460118en_HK
dc.identifier.hkuros146458en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-29144460118&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume152en_HK
dc.identifier.issue6en_HK
dc.identifier.spage883en_HK
dc.identifier.epage889en_HK
dc.identifier.isiWOS:000234318600018-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridZeng, YH=7402981440en_HK
dc.identifier.scopusauthoridMa, SD=8553949000en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK

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