NDLI: Sectorized space-time multiuser detection for CDMA systems

Content Provider	IEEE Xplore Digital Library
Author	Yang, K. Ohira, T. Yimin Zhang
Copyright Year	2001
Description	Author affiliation: ATR Adaptive Commun. Res. Labs., Kyoto, Japan (Yang, K.)
Abstract	Space-time multiuser detection (STMD) is an emerging technique for wideband CDMA mobile communication systems, where the problems of multiuser access interference (MUAI) and intersymbol interference (ISI) can be solved simultaneously. However, complexity becomes one of the key problems in its practical implementation because of the exponential increment of computation burden due to the increased number of users. In this paper, we propose the sectorized STMD scheme that confines detection within a given sector. In the proposed scheme, the number of users in the sector becomes smaller, and, consequently, the system complexity becomes lower. Due to the sectorized beamforming, the signal-to-noise ratios of the users' multipath rays are enhanced, leading to performance improvements in the signature waveforms' estimation and detection.
Sponsorship	IEEE Signal Process. Soc
Starting Page	306
Ending Page	309
File Size	321134
Page Count	4
File Format	PDF
ISBN	0780367200
DOI	10.1109/SPAWC.2001.923910
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-03-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiuser detection Multiaccess communication Intersymbol interference Array signal processing Antenna arrays Wideband Signal to noise ratio Mobile communication Wireless communication Base stations
Content Type	Text
Resource Type	Article

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