NDLI: Subspace based multiuser detector algorithms

Content Provider	IEEE Xplore Digital Library
Author	De, P.
Copyright Year	2000
Description	Author affiliation: Mitsubishi Electr, ITA (De, P.)
Abstract	New multiuser detector algorithms are developed for very high speed wireless CDMA networks. In wireless terrestrial channels required to support broadband applications like video and digital television, multipaths with long delays might hamper the reception. This is in addition to the interference between multiple users with varying signal strengths. However, the wireless terrestrial channel is sparse. The multiuser detector developed here is of the decision feedback topology. In this paper, a subspace based approach is employed, on this decision feedback topology, to exploit the sparseness of the wireless terrestrial channel as well as the difference in users' signal strengths. Selective updating of forward detector taps and feedback detector taps (from other users) will be employed by the base station, in the detection process. The algorithm results in superior convergence speed and lower steady state mean squared error.
Starting Page	2307
Ending Page	2311
File Size	457737
Page Count	5
File Format	PDF
ISBN	0780365070
ISSN	10903038
DOI	10.1109/VETECF.2000.883272
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-24
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Detectors Feedback Topology Multiaccess communication Digital TV Delay Interference Base stations Convergence Steady-state
Content Type	Text
Resource Type	Article

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