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Conference Paper: Two-step signal detection for MIMO-OFDM systems without cyclic prefix

TitleTwo-step signal detection for MIMO-OFDM systems without cyclic prefix
Authors
KeywordsChannel length
Cyclic prefix
Intercarrier interference
Mimo-ofdm systems
Multi-antenna
Issue Date2009
PublisherIEEE Communications Society. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000817
Citation
The IEEE Wireless Communications and Networking Conference (WCNC) 2009, Budapest, Hungary, 5-8 April 2009. In Proceedings of WCNC, 2009, p. 1-6 How to Cite?
AbstractIn this paper, a MIMO-OFDM system without cyclic prefix (CP) is considered and a two-step signal detection algorithm is proposed. The algorithm is based on some structural properties derived from shifting the received OFDM symbols. The first step cancels inter-carrier interference (ICI) and inter-symbol interference (ISI) with an equalizer designed using second-order statistics of the shifted received OFDM symbols. The second step detects the signals from the equalizer output in which the signals are still corrupted with multiantenna interference (MAI). In the proposed algorithm, precise knowledge of the channel length is unnecessary and only one pilot OFDM symbol is utilized to estimate the required channel state information, assuming the number of transmit antennas is smaller than the number of subcarriers in one OFDM symbol. Simulation results show that the proposed algorithm achieves comparable performance to algorithms for MIMO-OFDM system with cyclic prefix and it is robust against channel length overestimation. © 2009 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/126156
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorMa, Sen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2010-10-31T12:12:50Z-
dc.date.available2010-10-31T12:12:50Z-
dc.date.issued2009en_HK
dc.identifier.citationThe IEEE Wireless Communications and Networking Conference (WCNC) 2009, Budapest, Hungary, 5-8 April 2009. In Proceedings of WCNC, 2009, p. 1-6en_HK
dc.identifier.issn1525-3511en_HK
dc.identifier.urihttp://hdl.handle.net/10722/126156-
dc.description.abstractIn this paper, a MIMO-OFDM system without cyclic prefix (CP) is considered and a two-step signal detection algorithm is proposed. The algorithm is based on some structural properties derived from shifting the received OFDM symbols. The first step cancels inter-carrier interference (ICI) and inter-symbol interference (ISI) with an equalizer designed using second-order statistics of the shifted received OFDM symbols. The second step detects the signals from the equalizer output in which the signals are still corrupted with multiantenna interference (MAI). In the proposed algorithm, precise knowledge of the channel length is unnecessary and only one pilot OFDM symbol is utilized to estimate the required channel state information, assuming the number of transmit antennas is smaller than the number of subcarriers in one OFDM symbol. Simulation results show that the proposed algorithm achieves comparable performance to algorithms for MIMO-OFDM system with cyclic prefix and it is robust against channel length overestimation. © 2009 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEE Communications Society. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000817en_HK
dc.relation.ispartofIEEE Wireless Communications and Networking Conference, WCNCen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsIEEE Wireless Communications and Networking Conference. Proceedings. Copyright © IEEE Communications Society.-
dc.rights©2009 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.subjectChannel length-
dc.subjectCyclic prefix-
dc.subjectIntercarrier interference-
dc.subjectMimo-ofdm systems-
dc.subjectMulti-antenna-
dc.titleTwo-step signal detection for MIMO-OFDM systems without cyclic prefixen_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=2009&atitle=Two-step+signal+detection+for+MIMO-OFDM+systems+without+cyclic+prefix-
dc.identifier.emailMa, S: sdma@eee.hku.hken_HK
dc.identifier.emailNg, TS: tsng@eee.hku.hken_HK
dc.identifier.authorityMa, S=rp00153en_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/WCNC.2009.4918007en_HK
dc.identifier.scopuseid_2-s2.0-70349188526en_HK
dc.identifier.hkuros164457en_HK
dc.identifier.hkuros164461-
dc.identifier.hkuros180624-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70349188526&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.spage1-
dc.identifier.epage6-
dc.publisher.placeUnited Statesen_HK
dc.description.otherThe IEEE Wireless Communications and Networking Conference (WCNC) 2009, Budapest, Hungary, 5-8 April 2009. In Proceedings of WCNC, 2009, p. 1-6-
dc.identifier.scopusauthoridMa, S=8553949000en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK
dc.customcontrol.immutablesml 140703-

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