NDLI: Correlated fading and antenna directionality in multiuser detection

Content Provider	IEEE Xplore Digital Library
Author	Kellander, P. Cavers, J.K.
Copyright Year	2004
Description	Author affiliation: R. Inst. of Technol., Stockholm, Sweden (Kellander, P.)
Abstract	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.
Starting Page	1909
Ending Page	1913
File Size	1158326
Page Count	5
File Format	PDF
ISBN	0780385217
ISSN	10903038
DOI	10.1109/VETECF.2004.1400370
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Directive antennas Multiuser detection Antenna arrays Directional antennas Geometry Base stations Maximum likelihood detection Error analysis Receiving antennas
Content Type	Text
Resource Type	Article

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