NDLI: Adaptive step-size algorithms for blind interference suppression in DS/CDMA systems

Content Provider	IEEE Xplore Digital Library
Author	Krishnamurthy, V. Yin, G. Singh, S.
Copyright Year	1991
Abstract	This paper develops adaptive step-size blind LMS algorithms and adaptive forgetting factor blind RLS algorithms for code-aided suppression of multiple access interference (MAI) and narrowband interference (NBI) in DS/CDMA systems. These algorithms optimally adapt both the step size (forgetting factor) and the weight vector of the blind linear multiuser detector using the received measurements. Simulations are provided to compare the proposed algorithms with previously studied blind RLS and blind LMS algorithms. They show that the adaptive step-size blind LMS algorithm and adaptive forgetting factor blind RLS algorithm field significant improvements over the standard blind LMS algorithm and blind RLS algorithm in dynamic environments where the number of interferers are time-varying.
Sponsorship	IEEE Signal Processing Society
Starting Page	190
Ending Page	201
Page Count	12
File Size	273771
File Format	PDF
ISSN	1053587X
Volume Number	49
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference suppression Least squares approximation Resonance light scattering Multiple access interference Narrowband Multiaccess communication Vectors Detectors Size measurement Heuristic algorithms
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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