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Correlated fading and antenna directionality in multiuser detection
KTH.
2004 (English)In: VTC2004-FALL: 2004 IEEE 60TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-7: WIRELESS TECHNOLOGIES FOR GLOBAL SECURITY, NEW YORK: IEEE , 2004, 1909-1913 p.Conference paper, Published paper (Refereed)
Abstract [en]

We investigate detection of multiple users at a base station array of antennas, isotropic or directional, with overlapping beam patterns. The question is whether the increased diversity obtainable by isotropic antennas can compensate for the loss of antenna gain. We also account for limited angle spread of the arriving signals, which correlates the gains and reduces diversity. We consider the multiuser detection algorithm to be maximum likelihood and present new expressions for the resulting symbol error rate in correlated fading. Among other features, they show that each user's performance depends on the angle spreads of all users. We also demonstrate that a circular array of directional antennas with overlapping beams can achieve the same level of diversity as a circular array of isotropic antennas.

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2004. 1909-1913 p.
Keyword [en]
antenna arrays, multiuser detection, diversity, directional antennas
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-44739ISI: 000227931902079Scopus ID: 2-s2.0-17144399489ISBN: 0-7803-8521-7 (print)OAI: oai:DiVA.org:kth-44739DiVA: diva2:451494
Conference
60th IEEE Vehicular Technology Conference Location: Los Angeles, CA Date: SEP 26-29, 2004
Note
QC 20111026Available from: 2011-10-26 Created: 2011-10-25 Last updated: 2011-11-02Bibliographically approved

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  • apa
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  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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