Adaptive interference cancellation schemes for wideband CDMA system

Pao Yue-kong Library Electronic Theses Database

Adaptive interference cancellation schemes for wideband CDMA system

 

Author: Liu, Wai-man
Title: Adaptive interference cancellation schemes for wideband CDMA system
Degree: M.Sc.
Year: 2000
Subject: Code division multiple access
Radio -- Interference
Hong Kong Polytechnic University -- Dissertations
Department: Dept. of Electronic and Information Engineering
Pages: iii, 77 leaves : ill. ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1517914
URI: http://theses.lib.polyu.edu.hk/handle/200/3938
Abstract: Adaptive multiuser detector using least mean squared algorithm (LMS) for direct sequence spread spectrum (DS-SS) CDMA system with Rayleigh fading has been studied. Minimum mean square error (MMSE) receiver is the important concept behind this adaptive detector, which is computationally, based multiuser detection algorithm. This type of receiver can effectively cancel multiuser interference, hence improving the bit-error probability performance in detection. This detector is of interest as it can be implemented without explicit knowledge of the interferers' signal waveform, timing and energy, and also can be implemented adaptively. Performance analysis of the MMSE and adaptive LMS detectors was performed, which can serve as the foundation for the more advanced detectors like blind detection in the further investigation.

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