NDLI: Distributed versus centralized multiuser detection with antenna arrays in frequency-selective multipath channels

Content Provider	IEEE Xplore Digital Library
Author	Jang, W.M. Weixin Wu
Copyright Year	1967
Abstract	We have analyzed and compared two different multiuser detection receiver structures that are appropriate for code-division multiple access (CDMA) systems with multiple antennas in frequency-selective multipath channels. Distributed decorrelation detection (where signal decorrelation is performed at each receiving antenna) and centralized decorrelation detection (where decorrelation is performed once collectively) are compared. We show that they provide the same performance in additive Gaussian channels. Centralized decorrelation detection provides better performance in general frequency-selective multipath fading channels. Therefore, the hardware cost, complexity, and processing at the receiver can be optimized using centralized decorrelation detection. We employ decorrelation detection to demonstrate our results, although the work can be easily extended to other linear multiuser detection configurations.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	100
Ending Page	109
Page Count	10
File Size	397886
File Format	PDF
ISSN	00189545
Volume Number	54
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiuser detection Antenna arrays Frequency Multipath channels Decorrelation Multiaccess communication Receiving antennas Signal detection Gaussian channels Fading multiuser detection Antenna array code-division multiple access (CDMA) decorrelation multipath
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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