NDLI: Performance comparison of decorrelator designs for multiuser detection in asynchronous CDMA channel

Content Provider	IEEE Xplore Digital Library
Author	Gulhane, S.M. Pathak, S.S.
Copyright Year	2010
Description	Author affiliation: E & ECE Dept., Indian Institute of Technology, Kharagpur-721302, West Bengal, India (Pathak, S.S.) \|\| E & T Dept, Jawaharlal Darda Institute of Engineering & Technology, Yavatmal - 445001, Maharashtra, India (Gulhane, S.M.)
Abstract	In this paper, a reduced rank extended window decorrelator (RREWD) for asynchronous CDMA detection is derived. The reduction in the rank of the extended window signal space is obtained through interference cancellation. It is shown that the reduction in rank of the decorrelation matrix improves the performance and user capacity of the extended window decorrelator. Further, it is demonstrated that the edge assisted decorrelator, which also work on the similar principle of interference cancellation, exhibit the identical architectures as that of the RREWD. The results have become more demonstrative by introducing a classification for the decorrelators. The type of signature sequences used in processing the received signal at the receiver decides the class to which the decorrelator may belong. Full signature sequences based decorrelators are considered as the members of class-I while those that used partial/full signature sequences form class-II. A comparison of these two classes of decorrelators is presented to highlight the relative merits.
Starting Page	1
Ending Page	6
File Size	129219
Page Count	6
File Format	PDF
ISBN	9781424475568
e-ISBN	9781424475551
e-ISBN	9781424475544
DOI	10.1109/WCSP.2010.5633651
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Matched filters Correlation Interference cancellation Noise Estimation Code division multiple access Decorrelator Multiuser detector Decorrelation
Content Type	Text
Resource Type	Article

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